Monkeyhumpers are from the usually people infected with dysturbedstatic's disease. They have an alarming urge to have anal sex with monkeys. please see also:
and my favorite
That monkeyhumper just doesn't know when to quit humping, does he? When they bleed you just have to give up.
another term for any annoying emo kid.
Ewwww. You listen to Modest Mouse? You stupid monkeyhumper.