Cunt Bungler
A person that has an opportunity to have sex with a beautiful woman, but is so brain damaged that he misses the opportunity or completely ruins it by acting like a total fucktard, making the woman want to fuck her hand instead.
Jew Hung: "I can't believe Joe didn't blow his load last night, Mary was just about to suck his cock and mount him, but he preferred the to play on the Wii...he's such a Cunt Bungler!