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13.
What happens to anybody who steps up to Kash!
Two hits He hits you, you hit the floor. Knock out!
by Homies 2 December 22, 2008
 
1.
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.

by GMG1 January 02, 2008
 
2.
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.
by noooooooooope June 07, 2009
 
3.
(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.
by JigHexadecimal August 26, 2007
 
4.
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.
by Mon-Mon August 13, 2007
 
5.
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.
by ben renner June 22, 2005
 
6.
To go to sleep.
I'm so tired so I'm gonna knock out!
by Blabbermouth June 23, 2014
 
7.
A Mike Tyson
A: There's a swelling under your eye. Did you fight last night?
B: Yes
A: Did you win?
B: I Tysoned him out

knockout
by gachello August 05, 2011