Lempe Knockout 

When a male jacks off to a porno in the privacy of his room and a female walks in and the male is at the point of ejaculation turns around and squirts cum into the females eye

Johey was in his room during his "Private Time" when Claire walked in Johey was scared an accidently performed a Lempe Knockout on Claire.
"Claire you dumb hoe now i gotta rush your bimbo ass to the hospital because of my Lempe Knockout.

Lempe Knockout by Hey Tits Imeanwut December 16, 2008

California Knockout 

\"The so-called \"California Knockout,\" a person holds his breath for 10 seconds to get light-headed, after which a pal squeezes his neck to put him out (unconscious).\"

It\'s some kind of wacky \"trip\" or \"high\" inducing maneuver. Commonly practiced by stupid teenagers. It kills brain cells.

Info from article \"Our Civilization in Decline\".

California Knockout by dr April 26, 2005

college knockout 

noun: the process of a man jamming a female while on a lofted bed (perhaps in a college dorm room), during which the man pulls his member out of the females vajayjay, lifting up his head and nailing it on the ceiling, thus knocking himself out and falling face first into a puddle of cum on his lady's belly.

King Ginger was rockin' "Pinch Pinch" when he decided he didn't want Baby Ginger and pulled out too quickly, dome-crushing himself into a "college knockout" and falling into a pile of ginger juice.

college knockout by Tonbone, Tom O'D, Slam December 13, 2007

J Knockout 

A one-hit knockout that occurs at the end of a J Fight.

That J Knockout ended this long J Fight!

J Knockout by Obamazing December 31, 2009

Gentleman’s Knockout 

Where one participate in the act of masturbation swiftly followed by entering a warm/hot bath.
*WARNING* - Its is recommended not to have a Gentleman’s Knockout before planned activity as performance will be affected.

“Think I might stay in and have Gentleman’s Knockout tonight”.

“Can you help me move some furniture mate?”
“I’m going to be no good to you mate, I’ve just had a Gentleman’s Knockout”

Gentleman’s Knockout by Archie Richmond January 18, 2020

flash knockout 

When a person is knocked out by one big, exact hit that takes a person from being fine to getting ktfo.

Arlovski ran in against Fedor and took a flash knockout.

flash knockout by fsdfasdfsafasf we September 19, 2009

Nut knockout 

after Having sex and lying on a comfortable bed you just end up falling asleep

Damn baby that was some nut knockout type shit

Nut knockout by DarfleChorf September 22, 2019