Estimated reading time at 200 wpm: 5 minutes
Let’s be honest from the start: by today’s standards, the phrase “you couldn’t swing a cat in there” (or “there’s no room to swing a cat”) sounds pretty grim. It evokes an image of animal cruelty that most of us would rightly find shocking and unacceptable. Yet many people in the UK still trot it out occasionally when describing a tiny room, a poky office, or a cramped hotel bathroom—often without any real awareness of where it came from or just how dark its roots actually are.
Whether or not you agree our Fat Disclaimer applies
Thankfully, we no longer live in a world where such casual references to harming animals pass without a second thought. But the expression has stuck around for centuries, painting a vivid (if uncomfortable) picture of extremely confined spaces. So, how on earth did this peculiar saying enter the English language?
An Old Phrase for Tiny Spaces
The idiom has been around since at least the mid-17th century. Its earliest known written appearance comes from 1665, in a book called Medela Pestilentiae by Richard Kephale. The author was writing about the plague, and he noted that in some places people “had not space enough (according to the vulgar saying) to swing a Cat in.” The fact that he calls it a “vulgar saying” tells us it was already a common, everyday expression by then—something ordinary folk would mutter when complaining about stuffy, airless rooms during those terrifying plague outbreaks.
Over the years, the phrase has popped up in the works of famous authors. Charles Dickens used it in David Copperfield, where one character remarks there’s no room to swing a cat, only for another to quip that he never swings cats anyway. Mark Twain gave it a humorous twist too, joking about lacking space “with entire security to the cat.” Clearly, even in the 19th century, people understood it as referring to a real feline.
The Popular Naval Story (That Doesn’t Quite Add Up)
If you’ve ever looked up the origin before, you’ve probably heard the tale involving the Royal Navy’s infamous “cat o’ nine tails”—a vicious whip with nine knotted lashes used to flog sailors for all sorts of offences.
The story goes that the whip needed a fair bit of room to swing properly, so punishments were carried out on the open deck rather than in the cramped cabins below. Hence, if a space was too small “to swing a cat,” it was tiny indeed.
It’s a cracking yarn that fits neatly with our image of brutal naval discipline. The trouble is, the timeline doesn’t match. The phrase was already in common use by 1665. The term “cat o’ nine tails” itself doesn’t appear in print until 1695 (in a play by William Congreve), and using “cat” as shorthand for the whip came even later. Naval historians and etymologists have found no solid evidence linking the idiom directly to flogging practices. It seems this explanation is a later invention—classic folk etymology at work, where a dramatic story gets attached to an old phrase long after the fact.
The More Likely (and Rather Brutal) Explanation
So, if it’s not the naval whip, where did it come from? The evidence points to a much simpler—and unfortunately more literal—image: swinging an actual cat by the tail.
As unbelievable as it sounds, in the 16th and 17th centuries, cruel “sports” involving animals were unfortunately part of rural life in England and beyond. People sometimes swung live cats (often by the tail) from ropes, in sacks, or even as moving targets for archers at fairs and festivals. Black cats, in particular, were sometimes singled out because of lingering superstitions linking them to witchcraft. These practices were grim by any measure, but they were real enough to leave a mark on everyday language.
The phrase likely grew out of that vivid mental picture: if a room was so small you couldn’t even swing a cat around without it bashing into the walls or furniture, then it was seriously cramped. It was a colourful (if callous) way of describing tight quarters, much like other old idioms that draw on harsh realities of the past.
Why Does It Still Get Used Today?
Language has a habit of outliving the customs that created it. We still say “it’s raining cats and dogs” or talk about “letting the cat out of the bag” without thinking too deeply about their origins. The same goes for swinging a cat—most people who use the phrase nowadays are simply reaching for a punchy, traditional way of saying “this space is tiny.”
That said, it’s worth pausing now and then to remember how casually animal suffering once featured in everyday speech. We’ve come a long way in our attitudes towards animals, and phrases like this are a quirky reminder of that journey.
Next time you’re squeezed into a minuscule meeting room or a bijou Airbnb, you might still hear someone sigh, “You couldn’t swing a cat in here.” If the room is really bad, maybe just say it’s claustrophobic instead. Your feline friends (and modern sensibilities) will thank you.
