v. etymology-variation of babysit.
means to watch someone's beer or drink while they are away from it.
Hey Billy, beersit for a second while i go to the john and hit the one-dogger (see "one-dogger" i'm in hell and my keyboard doesn't have square brackets).
The anger and irritability felt when one does not have a beer available. Commonly displayed as aggression toward family, friends, coworkers, and other undeserving parties.
Guy 1: Oh man, today I was so beerritable I called my boss a thundercunt.
Guy 2: Crap dude. my girlfriend does that shit when she gets hangry.
A case of diarrhea, possibly accompanied by foul, sulfuric smelling farts, often coming the day after consuming mass quantities of alcoholic beverages such as beer.
"Man, after that party last night, I've been in and out of the can all day!"