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9.
ADJ.
1. Kinky or crimped; may be used to describe anything unconventional.
He walked proudly into the room and displayed his kelso curls.

That music is so kelso!
by warded May 27, 2006
 
1.
1. An abbreviation for Michael Kelso, a character from the FOX sitcom That '70s Show.

2. An extremely dim-witted person, often male.
1. Kelso burned down the Point Place Police Academy.

2. That guy is such a kelso! He just tripped over his own feet.
by FezDork March 22, 2004
 
2.
The highest level of sexyness you can acheive .... to be a sexy beats a pwn everyone at the act of being sexy
Kelly has alot of kelso, he must be really sexy
by KelsoMojito October 11, 2007
 
3.
A nickname given to someone when they behave extremely stupidly like Michael Kelso, a character from the FOX sitcom that 70's show.
Me: " You just skipped YOURSELF on your own blunt"

You: " Really?"

Me: " Stop being such a Kelso"
by Nuggy510 May 25, 2010
 
4.
Someone with extreme stupidity powers/lack of brain.
You know you're a Kelso when you have an incident in the cafeteria which causes your friends to call you "Tater Nuts".
by EnglishCroissant January 21, 2012
 
5.
A unit of measurement used to determine the sexual willingness of a random partner. Often referred to in the context of a verb, a 'Kelso' is equivalent to a full measure. A half-Kelso would suggest that an experience has been only somewhat satisfying. Example: She sucks, but does not swallow, she is only 'Half a Kelso', She enjoys one or more digits inserted into her anus but is not a fan of full penis penetration up the pooper, she is only 'Half a Kelso'. Alternatively, if the sexual experience can be likened to a hardcore porn movie, you would use the verb to describe the situation of having gone all 'Kelso' on her ass.
What was she like? On a scale of Zero to Kelso?
by LooseCanon April 22, 2013
 
6.
hipster term for weird.
It was kinda kelso bumping into him like that!
by Professor Moriah January 24, 2009
 
7.
a pathological liar.Someone who lies about everybody and everything.
She pulled a kelso and lied about coming over
by chuckles411 March 10, 2009