KJ
A "KJ" is a knee jerk. These are the people that react/overreact to a person/place/ or thing without knowing all the facts. They are quick to judge anything and anyone and have little to no regards for actual facts. They are the headliner chasers of the world.
"Why is he freaking out over that? Doesn't he know the Onion is fake?"

"He's a KJ. They don't know any better."
by Canadian Shield July 18, 2014
KJ
The KJ was invented by rapper Kyle Johnson and it is when a male inserts his penis into a females vagina; then takes his hand and inserts in into the vagina. Once the hand is in the vagina he strokes his own dick resulting in the best form of masturbation ever.
Mike: Bro, I'm really getting tired of late nights by myself...do you have any suggestions how to make it exciting again like it was in 5th grade?

Kyle: Yeah man, for sure. Just do the KJ

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Sarah: Hey baby, I'll let you do anything to me. What are you going to do?

R.Kelly: Bitch, I'm going to do the KJ to you big black ass.
by kylepen15 October 08, 2009
Kj
A cute couple that will last forever&always
Look at that Kj couple
by Skittle5611 April 23, 2015
KJ
the acronym for a person who "Knows Jesus"
Oh, hey, did you hear about Megan?
Yeah, I heard she KJs now

What's your religion?
I'm a KJ
by Chillysunbob November 23, 2009
K.J
K.J is a young teen, 15-16, who is on the computer right now reading this. If so then you are really dumb, only joking.
i see you though K.J AHAHAHAHAHAHAHA.
HAVE FUN!!!!!!!
wow K.J is so gullabe.
by thelalala May 14, 2015
Kj
a bad-ass that any girl will fall in love with. It takes a Joanna to keep him, and she won't let anyone touch her Kj; a guy that is learning to face his problems with the girl that loves him by his side; someone who won't give up, no matter how hard it gets.
Kj: This is so crazy. I got locked up for nothing.
Joanna: Yeah, but we'll get through it.
Kj: Damn right, 'cuz I'm a Kj.
by supportingmyman2295 July 22, 2013
A Karaoke Jockey; an inevitable phenomenon quickly turning itself into both hobby and vocation in bars across the world.
Man! Ever since Karen Sue became the new K.J. I love singing "I walk the line" she really knows how to make me sound like Johnny Cash!
by CRAssboy November 04, 2009

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