Someone who is completely useless, a loser (generally unemployed). Also, the head of the penis.
That boyfriend of hers is a real cock knob.
My wife just finished polishing my cock knob.
by R.W. Dorcey May 10, 2007
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A sexually selfish male, who does not reciprocate oral sex.
Logan is such a cock-knob, he got a blowjob from Lexi, but did not reciprocate the act of oral pleasure.
by Indu Thyme April 1, 2023
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The act of using your penis to open a closed door
Guy-how did you get in?
Guy2- I Cock knobed the door.
by Fuzzy man May 29, 2016
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Used to describe a person who is worse than both a "Cock" and a "Knob". Someone who more like the offspring of a cock and a knob, if it were possible for one to mate with the other.
Person A: Man, that dude just told my supervisor it was me who broke the TV, he knows I'll lose my job over it.

Person B: What a typical cock knob.
by BH7 February 2, 2011
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A police officer, or other person who attempts to exert their “perceived authority” on law-abiding citizens.
I’m exercising my First Amendment rights, you fascist cock knob, so take your badge and your gun, get back into your car and kick rocks.
by Grumpy Buddha June 4, 2023
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