Why Are So Many Idioms About Cats?

Run an audit of English idioms and one animal keeps turning up at the scene: the cat. It gets bagged, rained, killed by curiosity, and blamed for stolen tongues. Dogs — supposedly our best friends — barely place. What did the cat do to deserve all this linguistic attention?

Reason one: the cat was always there

Idioms grow from what people see daily, and for most of recorded history, almost every household, farm, shop, and ship kept a cat. Not as a pet in the modern sense — as pest control. Grain stores meant mice, mice meant cats, and cats meant everyone from Alexandria to Yorkshire spent their lives with a small predator in the room. Ubiquity is the first ingredient of idiom-making: you can't build a shared metaphor on an animal most people have never watched.

Reason two: cats are watchable

A sheep does roughly one thing. A cat performs — it stalks, sulks, startles, vanishes, survives falls that should end it, and treats its owner with negotiable loyalty. Every one of those behaviors is a metaphor waiting for a human situation. Cat-and-mouse games, cat naps, landing on your feet: these aren't inventions, they're observations. The cat wrote its own material; English just transcribed it.

Reason three: the superstition layer

Then there's the shadow-side. Medieval Europe tangled cats up with witches, omens, and the number nine — "a cat has nine lives" is centuries old, and some countries run the same proverb with seven. An animal that's half household worker, half creature-of-the-night gets talked about constantly, in both admiring and suspicious tones. That emotional charge is idiom fuel; nobody makes proverbs about animals they feel nothing about.

Quick origins from the census

Cat got your tongue? — genuinely unknown. It appears in 1800s America as something adults said to bashful children. The internet's naval-whip and ancient-Egypt explanations have zero evidence behind them; this one belongs on the honest-shrug shelf.

No room to swing a cat — recorded from the 1600s. Whether the cat is the animal or the later cat-o'-nine-tails whip is still argued; the phrase predates clear evidence either way.

While the cat's away… — versions exist across European languages back to at least the 1500s; the mice have been playing for a very long time.

Like herding cats — the baby of the family. It spread through American management-speak in the 1980s–90s and was immortalized by a Super Bowl ad in 2000 featuring cowboys driving a herd of housecats across the plains. Idiom-making never stopped; it just got a marketing budget.

The verdict

Cats dominate English idiom for the same reason they dominate the internet: constant presence, theatrical behavior, and an air of mystery that keeps humans projecting. The deep dives are here in the jar — the bag, the curiosity, the rain — and the rest of the menagerie waits in our 12-idiom tour. For phrase-by-phrase citations, the Phrase Finder keeps the records.

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