cockmonster noun2 •(vulgar, offensive) A very sexually promiscuous girl or woman.She be wiping her cooch all over that sword that's probably got all type of demon STD's on it since half of them are literal cockmonsters. — 2023 •(vulgar, offensive) A man who is well-endowed.Yeah, it's all over school. Mindy backs it up. She says you're a total cockmonster, I quote. And that what gets you off is having other people watch. — 2005 formscockmonsters