otherwise known as the "male camel toe". large protuding bulge in ones pants because his panis is crammed in them becasue they are too tight.
mike sat down and everyone could see his goat knuckle.. his wrnagleers were too tight.
by Justin Roberts June 15, 2007
Rough area around the anus. Sometimes hairy
No matter how hard I tried I couldn't finish the goat knuckle
by Jason Lawson September 15, 2005