Noun
The ball joint of the humerus in a moose's skeleton.
(slang) The noticeable shape of a man's penis when he is wearing tight clothes.
(slang, nonstandard, rare) The shape that is noticeable when tight-fitting clothing wedges between a woman's labia.
moose-knuckle (plural moose-knuckles)
Alternative spelling of moose knuckle
moose-knuckle