(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.
od uživatele JigHexadecimal 26. Srpen 2007
15 more definitions
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.

od uživatele GMG1 02. Leden 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.
od uživatele noooooooooope 07. Červen 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.
od uživatele Mon-Mon 13. Srpen 2007
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.
od uživatele ben renner 22. Červen 2005
To go to sleep.
I'm so tired so I'm gonna knock out!
od uživatele Blabbermouth 23. Červen 2014
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
od uživatele gachello 05. Srpen 2011

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