The inability to come from a blow-job given by a girl, because you mind is thinking about other guys. It's a combination of the words Regress and Cock.
Guy#1: Hey Bro, I saw you leaving with a hot chick last night...
Guy#2: Yeah, she was hot but the night ended in a gresock.
Guy#2: Yeah, she was hot but the night ended in a gresock.
by Inspector69 March 31, 2015
A male that takes an interest in other men. Has a strong attraction to homosexual manner. Can be considered a complete failure at life.
by hutzal February 12, 2016