Top Definition
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 06, 2005
4 more definitions
The male version of a camel toe. ie. A creased bulge in one's pants crotch caused by the squeezing of the penis against cloth.
Miguel's jeans were so tight that everyone in class saw his cock knuckle.
by potzer October 27, 2007
a person that is acting like an idiot or dick head
" hey andrew ! what did you do that for you cock knuckle "
by THE SMITTER March 14, 2008
The bend in a bent cock often from a previous injury due to a flaccid member being forced into an overweight woman
That Swampdonkey was so heavy she snapped his cock and how he's got a cockknuckle
by MadazaBadja October 29, 2007
I recall a certain Dr. who taught radiology. He used the Socratic method. He would show us an X-Ray and select a student to identify it. One day he put up the soft-tissue X-Ray of the human penis. Superimposed upon that penis was a phalange (a finger). The woman he called upon was clearly unprepared and stuttered, then uttered the words... "Isn't that a penis bone?" Difficult to believe she was going to become a doc! LMAO Needless to say, if we have a penis BONE, we have a penis JOINT. Therefore, et ergo sum...... the penis must have a 'hinge' and a knuckle! Since this allows the penis to move UP or DOWN... anything that moves up or down may, in theory, be a cockknuckle.....
Someone's mood..... "Gosh, that woman can turn on a dime, one minute she's nice, the next minute she's a bitch!" What a cockknuckle!
by tinkertoyjosh March 25, 2010

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