What is Knuckle Butter?
1.
Noun, the slimy substance that seeps out from between the fingers of a closed fist after a person has ejaculated in their own hand.
Jack used a tissue to wipe the knuckle butter off of his hand after he jacked off.
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the #1 cause of suicide in the United States
Dude my erectile dysfunction means I can OD on Viagara
See jack off, bad dick, no sex
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A popular tabletop and live-action roleplaying game from White Wolf publishing portraying vampires in modern times, and also in other er..