cock knockin 

when two guys are havin sex with the same girl at the same time vaginal and anal and they can feel each other inside her thru the thin membrane

Dude I felt you swell up before cumming in that girl's ass we were cock knockin last night.

cock knockin by PizzaManDude September 6, 2013

Cock Knocking Fuck 

A man who is acting like a jerk or an ass as pertaining to how he treats women.

Did you hear about him? He got caught messing around on his girl. What a cock knocking fuck.

Cock Knocking Fuck by Burned66 November 27, 2012

Cock Knocking

When one slaps the vagina/clitoris/labia with his cock before entering it.

I always let my man in after a good cock knocking

Cock Knocking by PDoodles August 30, 2018

cock-knocking-clown-fucker 

the act of being a horneyer

Oh look, theres B, what a cock-knocking-clown-fucker

cock-knocking-clown-fucker by J O N C November 1, 2006

Cock Knocking

The art of getting your cock and slapping it on your partners forehead before they wake up. Sometimes done before a blow job but less popular

cock knocking = Oli cock knocked Ben before a BJ, Ben was not amused

Cock Knocking by KJK72 July 4, 2008

cock knocking

Cock knocking involves two males. One male has "trained" or "stretched" his penis hole, commonly using house hold objects such as markers and progressing to larger items, etc.

The second male inserts his erect penis into the urethra of the male with the "stretched" hole and they proceed to have penis to penis sexual relations. often resulting in disturbing infections.

"Bob and ted reached a point in their relationship where they felt it necessary to start cock knocking."

"Ed f*cked James' pee hole"

cock knocking by ketchuptaco March 12, 2008

cockknocking 

to try and out groin a person and it realy pisses off our teacher in pshe

earl: ballsack
crabman" sperm bank (even lounder)
Randy: collin has a small fallis (lounder)
Earl: BALLSACK :teacher hears it and sends him ou
everbody laughs while the teacher trys and controls the class who by now are all doing it
teacher: ohhh stop cockknocking

cockknocking by manbeasthunter June 14, 2006