cryogenic fart 

It's a fart that is stored cold in your stomach waiting to be released. And once it is released it burns a hole in your underwear and makes the whole room smell like rotten eggs. Very dangerous if you experience it in a car or another small closed space.

Damn bro, what is that smell?

Bruh that is a cryogenic fart let out by someone in the hall.

cryogenic fart by nah mann comeon October 17, 2022