Where this bizarre expression came from, how its meaning has evolved, and where you might have seen it used.

BIG QUESTIONS
Tens of thousands of fallout shelter signs, with three yellow triangles in a black circle, are visible on building façades today. They serve as grim reminders of the hottest flashes of the Cold War. So why are they still around?
If you have the time, opting for a quick checkout might save you a bit of money and make someone else’s day a whole lot smoother.
What sets green and black olives apart? It’s more than just color.
You never want to butt-dial the cops by mistake. But if you do, here’s what happens next.
An extra-fluffy tail doesn’t just look cute—it’s your cat’s way of communicating how they feel.
It sounds like a myth, but hot drinks really can make you cooler.
Baby viewing windows were once a staple of hospital maternity wards across the country, but now they feel like a relic from a bygone era. Read on to learn about their history—and the real reasons why they vanished.
Feeling anxious can be normal and sometimes even healthy. Missing out on life because of that anxiety is not.
Confused about pupae, chrysalises, and cocoons? Discover the key differences between these metamorphic terms.
Residents of Washington, D.C., have no governor, no voting representation in Congress, and only limited local authority. The reason is simple: D.C. isn’t a state. Let’s break down the history and future of D.C. statehood.
The original reason electrical plugs had holes isn’t the reason they still have holes these days. Discover the history behind their evolution here.
Here’s a hint: It’s not by sweating through their paws.
All you need to know about the latest generational phenomenon sparking arguments on TikTok and other social media platforms, from what it is to why Gen Z is doing it.
Birds and bees get all the action—and Samuel Taylor Coleridge was jealous. Here are the possible origins of the euphemistic phrase.
Forget what you’ve heard about a dog—here’s the real story behind the origins of the name ‘pickleball.’
Yes, it’s green, but eating it may not make you feel like a health goddess.
Some old-fashioned window guards look like they have a potbelly. Discover the real reason why, as well as the history surrounding these unique grills.