Mental Floss

ETYMOLOGY

The origins of these animals’ names may surprise you.

‘Hippopotamus’ is Latin for “river-horse,” which makes sense for these semiaquatic mammals. The origins of some other animal names aren’t quite as literal.

Paul Anthony Jones


Where did this weird word come from?

It’s hardly the most complimentary turn of phrase, but rug rat has been a slang term for children for more than half a century.

Paul Anthony Jones




Which ones will you start using in conversation?

If you’ve ever needed a word for a piece of bread eaten just after a bath, or a term for an unpleasant choice between three options, you’re in luck.

Paul Anthony Jones


This is no time to batten down the hatches.

A handful of centuries-old sailing words remain known only to the saltiest of seamen, but some have become part of our everyday language.

Tim Brinkhof
‘Dumpster fire’ is just one slang term to come out of the 2000s.

In the 2000s, the internet took over, as did social media, streaming, and cell phones that were also cameras and tiny computers. The slang of this era didn’t disappoint, either: From amazeballs to mukbang and beyond, here are some terms you might not have

Erin McCarthy

Once upon a time, there used to be B batteries, but they’re not manufactured anymore. Here’s why they disappeared from shelves.

Matt Soniak






Everybunny wants to know why we call rabbits “bunnies.”

When it comes to abbreviations for animal names, doggy for dog makes sense, as does kitty for cat, when you think about it: Kitty comes from the word kitten. But where does bunny for rabbit come from?

Kara Kovalchik








Pasta's journey to your kitchen table is more fascinating than you might think.

Ever wonder how lasagne, vermicelli, and macaroni came to be? Dive into the history of some of the best pasta shapes and their cultural significance in Italy and beyond.

Michele Debczak


The origin of ‘a piece of cake’ comes from actual cake.

From ‘piece of cake’ to ‘the apple of my eye,’ these food-related phrases have fascinating histories.

Matt Soniak