(Informal Noun) a person or thing that is overwhelmingly attractive.
Svetlana knew how to dress to perfectly complement her tall, athletic frame. By virtue of her bright eyes, silky long hair, and a smile that could stop a revolution, people widely regard her as a knock out.
#knockout #knock-out #goreous #sexy #attractive #beautiful #ugly #dog #unattractive
af JigHexadecimal 26. august 2007
Top Definition
1. A very attractive woman. So named because her attractiveness is so stunning that it can (figuratively) knock you out. (make you speechless, stutter, etc.) Hence the term "knockout."
2. A punch in boxing that knocks your opponent unconscious, typically ending the match.
Guy1: Wow check her out!
Guy2: Yep, she's a knockout all right.

#hottie #goddess #gorgeous #smoking #babe
af GMG1 2. januar 2008
to go to sleep. mainly said in reference to a full nights rest, 7 or more hours.
hey man, i'm about to knock out. laters.
#sleep #knock out #asleep #night #bed
af noooooooooope 7. juni 2009
This is a girl who is beautiful with or without makeup. Most are high matinence but doesn't mean all of them will be. She has it all, beauty and brains.

Also know as: Knockout Beauty.
I like dat chick right there! She's a knockout.
#female #beautiful #sexy #cute #hott #high matinence #gorgeous #exotic #intellegent #funny
af Mon-Mon 13. august 2007
To go to sleep.
I'm so tired so I'm gonna knock out!
#knock out #sleep #beat #hit #nightie
af Blabbermouth 23. juni 2014
a basketball game where one person shoots a free throw/three pointer and if he misses he must chase his ball and make any shot before the person behind him makes a shot.
I can't shoot so he beat me in knockout.
af ben renner 22. juni 2005
when having sex, you go for at least three rounds that are at least 30 minutes long and you don't cum until the the third or later round
round one=no cum, round two=no cum, round three=cum and KNOCK-OUT
#round #three #3 #nock #out #sex #cum #knock
af Wizzard the Juggalo 9. december 2010
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