Blowing chunks out your ass after eating a volatile substance, usually a few bean burritos or any product from taco bell.
Dude, I shouldn't have ate those burritos, I blew asschunks all night.
Don't use that restroom! Someone blew asschunks in there and it reeks!
I don't want to eat taco bell man, it gives me serious asschunks whenever i do...
the definition of chink defines it as "a tiny hole or crack, usually in a wall", therefore, the word asschink is actually the equivalent of the word asshole, asshole=asschink.
P1: "Hey, i just got laid, by ur girlfriend!"
P2: "you f**kin asschink, get back here!"
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.