beerjack
Stealing someone's drink directly out of their hand while at a party, bar, club, or other area where alcoholic beverages are served
Me: BEERJACK!
Other person: That bitch just stole my beer!
Other person: That bitch just stole my beer!
beerjacker
a person who takes all the beer that is left over after a drinking party
dude, she's a beerjacker, she just took the rest of our drinks