What is Mule Knuckle?
1.
Is the equivalent of a camel toe, but for guys. When your shorts or jeans ride up your crotch and you can see your nuts making a distinctive shape similar to that of a mules knuckle.
"Look at that guy sitting over there, he totally has a mule knuckle right now"
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This rare specie of dinosaur was found in the neolithic age. It lived near the prime meridean and could often be seen doing an ancient d..
