beat

extremly ugly, discusting, most likely shortened version of "beat with an ugly stick".

Guy #1 - mann you were so drunk last.
Guy #2 - Yeah man that chick you took home was beat.
Guy #3 - Okay give me some slack, I had my beer goggles on.

kill it

asking someone to finish something for you.

Girl one- I dont want this beer anymore.
Girl two- give it to me I'll kill it.