Look long enough and hard enough, and you will be able to find just about anything on the internet. TikTok, in particular, is famous for being a labyrinth of inside jokes, memes and ironic references that rise to prominence, elicit laughs, form a trend and then quickly fizzle out.

Most of these jokes and memes, even if they’re quite funny, are pretty lowbrow. Recently, though, an obscure scientific term has come to be at the center of the latest viral TikTok joke: magnesium iron silicate hydroxide.

You’ve probably seen videos with this term making the rounds, but if you just don’t get the joke, allow us to explain it to you.

A Good Ol’ Fashioned Double Entendre in a New Form

Everyone loves a good sexual pun or double entendre. People have been making jokes like that for thousands of years, and it never fails to work if the joke is properly constructed.

TikTok has also cashed in on this tradition, with the recent Candice memes — turning “Candice” into “Candice d**k fit into your mouth” — being a perfect example.

So, what’s the deal with magnesium iron silicate hydroxide? It’s a chemical compound that forms a crystal, but if that sounds rather trite and boring, you should hear its more colloquial name: cummingtonite.

That should make the joke underlying this trend self-explanatory.

TikTok users have been making videos that find all sorts of level ways to work the term “magnesium iron silicate hydroxide” into their premises, and snickering to themselves.

Even though it uses a scientific term, it’s not the most sophisticated joke in the world. Still, with its many incarnations and reworkings, it finds a way to stay funny.