25 Common English IdiomsMeanings, examples, and where they came from
An idiom is a phrase whose meaning you can't assemble from its words — you either know it or you don't. Here are twenty-five worth knowing, with the stories behind them.
Idioms are where a language keeps its history. Bite the bullet remembers surgery before anesthesia, bury the hatchet preserves a real peace ceremony, and cut to the chase is a silent-film editing note that escaped the studio. Learn the story and the phrase becomes hard to forget — and harder to misuse.
Each idiom below links to its full illustrated entry, with pronunciation, etymology, and practice built in.
a dime a dozen
Meaning: very common and of little value
Example: Productivity apps are a dime a dozen; ones you still open in March are rare.
Origin: Pure Americana. The dime was minted in 1796, and by the mid-1800s grocers were advertising eggs and apples 'a dime a dozen' — a genuine bargain that flipped, as bargains do, into shorthand for anything cheap and everywhere.
See the full entry for a dime a dozenkill two birds with one stone
Meaning: to accomplish two things with a single action
Example: Walking to the meeting killed two birds with one stone: exercise and punctuality.
Origin: In English since the 1600s, when writers including Thomas Hobbes used it, and the sling-and-stone image is far older — similar proverbs exist in Latin and Greek. Modern speakers who find it grim say 'feed two birds with one scone.'
See the full entry for kill two birds with one stoneblessing in disguise
Meaning: a good thing that seemed bad at first
Example: Losing that client was a blessing in disguise — it freed the team for better work.
Origin: First recorded in 1746 in a hymn by the English writer James Hervey, where hardships are called 'blessings in disguise.' The phrase kept its devotional flavor of hidden providence long after it left the hymnal.
See the full entry for blessing in disguisebite the bullet
Meaning: to endure a painful situation with courage
Example: She bit the bullet and read every one of the one-star reviews.
Origin: The popular story — battlefield patients biting a soft lead bullet through surgery without anesthesia — is plausible lore rather than documented fact. The first print appearance is Rudyard Kipling in 1891: 'Bite on the bullet, old man, and don't let them think you're afraid.'
See the full entry for bite the bulletbreak the ice
Meaning: to initiate conversation in a social setting
Example: A terrible pun about the weather broke the ice at the interview.
Origin: From ships, not parties: an icebreaker cleared a frozen channel so other vessels could follow. Sixteenth-century writers borrowed the image for anyone who opens a path — Shakespeare uses it in The Taming of the Shrew.
See the full entry for break the icespill the beans
Meaning: to reveal secret information
Example: Someone spilled the beans about the redesign a week before launch.
Origin: Often traced to ancient Greek voting with white and black beans, where a knocked-over jar revealed the tally early — a tidy story with thin evidence. The phrase is actually American slang from the early 1900s, when 'spill' already meant 'talk.'
See the full entry for spill the beanslet the cat out of the bag
Meaning: to reveal a secret accidentally
Example: He let the cat out of the bag by congratulating her before the announcement.
Origin: Recorded by 1760 in The London Magazine. The classic explanation ties it to market fraud: a piglet sold in a sack — a 'pig in a poke' — swapped for a worthless cat, with the secret out the moment the bag opened. Unproven, but the two idioms fit suspiciously well.
See the full entry for let the cat out of the bagonce in a blue moon
Meaning: very rarely
Example: He answers email once in a blue moon, usually to say he'll reply properly soon.
Origin: 'The moon is blue' was a 16th-century way of stating an absurdity — something that never happens. The moon can, in fact, look blue after volcanic eruptions like Krakatoa in 1883, so the impossible softened into the merely rare. The 'second full moon in a month' definition came much later.
See the full entry for once in a blue moonpiece of cake
Meaning: something very easy to do
Example: After the tax forms, the visa application was a piece of cake.
Origin: American, 1930s — the poet Ogden Nash used it in 1936. Likely descended from cakewalk contests, where the most stylish walkers literally took the cake. Royal Air Force pilots adopted 'a piece of cake' for easy missions, which spread it worldwide.
See the full entry for piece of cakeunder the weather
Meaning: feeling ill or unwell
Example: She dialed into the call sounding distinctly under the weather.
Origin: Nautical. A seasick or ailing sailor was sent below deck, out of the wind and spray — literally under the weather. Nineteenth-century sailors' usage drifted ashore intact.
See the full entry for under the weatherbury the hatchet
Meaning: to make peace; end a conflict
Example: The two founders buried the hatchet at last year's reunion.
Origin: From a real ceremony: Iroquois and other Northeastern nations marked peace by literally burying weapons. English colonists recorded the practice in the 1600s, and the figurative English phrase followed.
See the full entry for bury the hatchetburn the midnight oil
Meaning: to work late into the night
Example: The team burned the midnight oil to ship before the conference.
Origin: From the era when working late meant literally burning lamp oil. The English poet Francis Quarles wrote of 'the midnight oil' in 1635, and the ancient Greeks already teased laborious writing for 'smelling of the lamp.'
See the full entry for burn the midnight oilbarking up the wrong tree
Meaning: pursuing a mistaken or misguided course
Example: If you think marketing caused the outage, you're barking up the wrong tree.
Origin: From American raccoon hunting in the early 1800s, done at night with dogs. A hound that lost the scent would bay confidently at a tree the raccoon had already left — effort, volume, and total error.
See the full entry for barking up the wrong treebeat around the bush
Meaning: to avoid getting to the point; speak evasively
Example: Stop beating around the bush and tell me whether the budget was approved.
Origin: One of English's oldest idioms, from medieval bird hunts: hired beaters struck the ground around a bush to flush birds out while avoiding what lurked inside it. The cautious preamble became the whole meaning — all approach, no point.
See the full entry for beat around the bushthe last straw
Meaning: the final problem that makes a situation unbearable
Example: The third surprise reorg in a year was the last straw; she resigned Monday.
Origin: Short for 'the last straw that breaks the camel's back,' a proverb about tiny additions to an unbearable load. Earlier centuries said 'the last feather that breaks the horse's back'; Dickens helped fix the camel version in 1848's Dombey and Son.
See the full entry for the last strawthrow in the towel
Meaning: to give up; admit defeat
Example: After two years fighting the zoning board, they threw in the towel.
Origin: From boxing: a fighter's corner concedes by literally throwing a towel into the ring, sparing him the final rounds. The custom — and the phrase — settled into English in the early 1900s, replacing the older 'throw up the sponge.'
See the full entry for throw in the towelcut to the chase
Meaning: to get to the point without wasting time
Example: Let me cut to the chase: we're keeping the feature but renaming it.
Origin: From silent-era Hollywood, where scripts and impatient studio notes ordered editors to cut from talky scenes straight to the chase sequence the audience actually came for. Film jargon by the 1920s, general impatience ever since.
See the full entry for cut to the chaseread between the lines
Meaning: to understand the hidden meaning
Example: Read between the lines of the press release and you'll see a pivot.
Origin: From 19th-century cryptography: secret messages were hidden in invisible ink between the visible lines of a letter, or coded so that alternate lines carried the real text. Reading between the lines was literally where the truth sat.
See the full entry for read between the linestake with a grain of salt
Meaning: to view something with skepticism
Example: Take the benchmark numbers with a grain of salt; they're from the vendor.
Origin: Ancient. Pliny the Elder's Natural History (AD 77) records an antidote to poison meant to be swallowed with a grain of salt — cum grano salis. Scholars later used the Latin tag for claims needing seasoning before you swallow them.
See the full entry for take with a grain of saltelephant in the room
Meaning: an obvious problem that everyone ignores
Example: Nobody mentioned the elephant in the room: the product had no paying users.
Origin: Ivan Krylov's 1814 Russian fable 'The Inquisitive Man' describes a museum visitor who catalogs every tiny insect and misses the elephant; Dostoevsky quoted the image. English picked up the room-bound elephant in the mid-20th century.
See the full entry for elephant in the roomcatch-22
Meaning: a paradoxical situation with no escape due to contradictory rules
Example: You need experience to get the job and the job to get experience — a perfect catch-22.
Origin: Coined by Joseph Heller in his 1961 novel: a bomber pilot who asks to be grounded as insane proves, by asking, that he's sane enough to fly. It was nearly Catch-18 — the title changed to avoid clashing with Leon Uris's Mila 18.
See the full entry for catch-22devil's advocate
Meaning: one who argues against something for the sake of debate
Example: Let me play devil's advocate: what if the churn isn't about pricing at all?
Origin: A real job. The Catholic Church's advocatus diaboli, formalized in 1587, argued against each candidate for sainthood to stress-test the case. The office was largely abolished in 1983; the boardroom kept the role.
See the full entry for devil's advocateby the skin of one's teeth
Meaning: just barely; by a very narrow margin
Example: They hit the funding deadline by the skin of their teeth.
Origin: Straight from the Book of Job: 'I am escaped with the skin of my teeth' (Job 19:20, Geneva Bible, 1560). Teeth have no skin — which is exactly the point. Job escaped with nothing at all, and so does anyone who uses the phrase.
See the full entry for by the skin of one's teethat the eleventh hour
Meaning: at the last possible moment
Example: The deal was rescued at the eleventh hour by a rival bidder.
Origin: From the parable of the vineyard workers in Matthew 20: laborers hired at the eleventh hour — one hour before quitting time — are paid the same as those who worked all day. The lateness stuck; the generosity mostly didn't.
See the full entry for at the eleventh hourraining cats and dogs
Meaning: raining very heavily
Example: It was raining cats and dogs, so the rooftop party moved to the stairwell.
Origin: The honest answer: nobody knows. The thatched-roof story (animals sliding off wet roofs) is myth. Seventeenth-century writers had storms raining 'dogs and polecats,' and Jonathan Swift — who used the phrase in 1738 — had earlier described city gutters washing up dead cats after a downpour, which may be the grim seed.
See the full entry for raining cats and dogsLearn all 43 in the collection
These twenty-five are part of Segue's Idioms & Expressions collection — flashcards, quizzes, and typing practice that move idioms from recognition into the phrases you actually reach for.
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