a guy who likes to play with his dick
Jill likes to play with her cock knocker
by Danielle March 10, 2003
A member of the public who constantly wastes car sales executives time by asking fucking stupid questions and wanting to test drive every car on pitch.
person aged about 50 who has nothing better to do better known as a cock knocker.
by carsales May 14, 2010
a cock knocker is a person with a large fist who smashes males in the balls for no apparent reason.
cock knocker pretty much ball tap but a huge ass fist is the tapper
by chronic007 November 21, 2009
A homosexual who engages in very aggresive sexual contact, consensual or not!
Holy tits tom, you won't believe it! Jebediah just got viciously hand raped in the park by that serial cock knocker. Is he alright? No, he got ass fucked aswell.
Any non-penetration act in which the male penis (as opposed to those weird female penises i saw on TV... yuk!) comes into contact with a hand. Most likely but no tlimited to:

-Someone who makes frequent attacks to the cock

-Someone who fondles the cock

-Someone who loves the cock

-Someone who jacks off the cock (not their own)
Being a cockknocker is not a good thing.
by Gumba Gumba February 27, 2004
like ringing the door bell but your balls do the ringing and your cock does the knockin'
he grabbed his cock knocker till his balls rang"ding dong"
by pchmaint January 05, 2006
When a chick grabs your dick and plays click clacks with your balls
my girlfriend is a cock knocker, when she was blowing me, she pulled my hard cock and my balls clanked together...
by cocker knocker December 01, 2003

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