tobinwoodferleman's definitions
a cock that has been abused to the point that it bends like the knuckle of a finger. also can be used as an insult.
"man, tobin wacks it so much that he has a cock knuckle!" or, "man, tobin stole my top ramen. He is a cock knuckle!"
by tobinwoodferleman October 6, 2005
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