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15.
the male version of the word cunt. A cock knocker is a male who needs to be called the worst word you can come up with. He is the kind of man that if he were a woman you would call a cunt. He is the kind of person that will relentlessly take the wind out of you, deliberately sabotage you, and sometimes even seems to enjoy being hated.
My professor is such a cock knocker! He said that all the girls in the class may as well drop because they won't pass anyway! GRRRR... I loath that mo-fo!
by ismirth June 02, 2007
 
16.
An offensive term suggesting a male is Gay
Richard G is a Cock Knocker.
by S Littlewood September 09, 2008
 
17.
A. an unflattering insult in the same vain as referring to someone as an asshole dickhead or jerk-off
What a cock knocker! that guy`s a cock knocker!
by Dmentd December 19, 2007
 
18.
An absolute dick head, a fool.
'That DJ is playing the worst shit, he's such a
'Cock Knocker'!
by Erinjess February 23, 2008
 
19.
a cock knocker is a person(s) that is gay, homosexual or a plain old dickface
see (knob Jockey) for fether definition of cock knocker
by Alex Walters March 24, 2005
 
20.
This happens during a threesome (2m&1F).
If one guy is up the ass and the other is up her flange. Both guys can feel there cocks knocking against each other.
This also can apply if the 'double A/double V' method is being used!

Jane could feel them both inside her, they were a couple of cock knockers.
by Minges and all! April 15, 2003
 
21.
Used frequently as an insult, Cock Knocker refers to a person of either sex who grabs or pats a mans crotch. The act of Cock Knocking has two meanings: 1) A way for one male to congratulate another male similar to American football players patting each other on the rear. or 2) A sexual advance toward a male by a person of the either sex.
You are such a cock knocker.
by JediAndi April 04, 2003