Basically means that you should eat that pizza. Don't waste your time trying to squeeze into society's expectations, just live your life. You never when you're going to die so make the best of it.
Them: Are you sure you wanna go skydiving?
Me: I'm here for a good time, not a long time, YEET!
A threat often delivered to those who often deserve to be at the sharp end of it's deadly meaning. Commonly found in preschool classrooms and in chinese adult film stores.
"I'm gonna gut you like a fish, wear your entrails like a scarf, and use your kidneys as mittens, you goddamn cum guzzling piece of shit."