buck knuckles

Male version of the Camel Toe. When a mans pants are so tight it seperates his testicles individually from an outside view looks like a pair of Buck Knuckles. Also known as Moose Knuckles. Robert Plant is famous for his buck knuckles.

Either that Emo kid has a vagina, or hes flashing his buck knuckles.

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yuckbutt

Wet substance remaining in the anus. Can be caused by lubricants, semen and even crap from a poopdick.

Roy had a yuckbutt after a pleasent evening with Troy.

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