A moose knuckle is equivalent to a camel toe on a woman, only on a man. It is when a mans testicles are pulled up tight and/or high and separated by the seam in their pants causing the appearance similar to a moose knuckle. Called thus because larger than sister equivalent the camel toe
For the love of god man getsomething to control that moose knuckle you got on you!
A derogatory term for the size of a woman's sideways sloppy joe. It is when a woman's cooter cleavage is clearly visible through her form-fitting clothing, aka spandex. It is definitely a hot fashion statement.
Man, I thought my weiner looked big when I wore speedos, but that chick's moose knuckle has got me beat by a long shot.
When a male is wearing clothing or underwear so tight to his genital area, the testicles and/or penis are pushed into the shape resembling a moose knuckle.