When you burp and you get the taste of puke. Similar to a shart, where one farts and a little shit comes out, but in the mouth area.
Guy 1: *Burp* Oh shit, i just made a mouth shart
Guy 2: Aw, you want some Sprite?
The feeling you get and/or the sound you make when you've just found out something truly awesome.
Guy 1: Dude, did you hear that Sacha Baron Cohen is gonna play Freddie Mercury in a movie?
Guy 2: *Orgaspm*
