moose knuckle

noun3

1. •
   (slang) The noticeable shape of a man's penis when he is wearing tight clothes.

   • […]the VIP of the GOP, George W. Bush in full military flight suit, with his ejector harness giving him the worst moose knuckle in presidential history. — 2005
2. •
   (slang, nonstandard) The shape that is noticeable when tight-fitting clothing wedges between a woman's labia.

   • I was grateful for the distraction, as I had been trying to look anywhere but at the giant moose knuckle spray-painted between her thighs […] — 2008
3. •
   The ball joint of the humerus in a moose's skeleton.