plasterbating

The act of masturbating after a night (or day) of severe drinking.

dude a: Got so wasted last night, went back to my place, got to plasterbating promptly.

dude b: Did your girlfriend watch again?

bi-brolar

A person that's fluctuates between being a real stand up guy and being a full blown tool.

Guy 1: Dude! Mike was the man last night at the party, he bought everyone shots!!
Guy 2: He's being a real douche today though. I wonder if he is bi-brolar.