look up any word, like donkey punch:
 
4.
A woman with the utmost style who lives for bad 70’s disco, thinks she’s hysterically funny (even when she isn’t), and who loves the film, Fletch. Can be used as a descriptive noun or as an adjective to describe Lisa C.

Credits to Jeff C. 143
"Koolkid is dancing on the bar again." Or, "That girl, Lisa C., is such the koolkid after a few Midori Sours." Or, "Geezo, she’s a dork but she thinks she’s such the koolkid."
by Trouble September 02, 2004
 
1.
A specific style of clothing and attitude, somewhat like a less emo version of scene, usually consisting of bright , eccentric and/or quirky clothes, hi-top sneakers, skinny jeans, occasional neon fanny-pack and scarves, old school glasses, and pop art t-shirts. Tend to be high energy, dorky, silly, like bright colors, and possess a large vocabulary. Are often homosexual.
Lisa: Check out that guy with the fanny pack over there!

Matt: Ah, no way! I love Kool Kids! Gettin' his digitz.
by MtJc June 25, 2009
 
2.
-Something to describe someone whilst being sarcastic or not wanting to listen.
-To hide the fact that a story that's just been told was boring as hell.
Guy: Hey wanna hear my awesome story?!
Girl: Sure!
Guy: Blah, blah, blah, etc...
Girl: Kool kid *yawns*
by Crunstance February 23, 2012
 
3.
a way to describe other groups on a message which do not include yourself, particularly after you have made a blatantly troll-like comment.
you koolkids don't like me! i wonder why?
by wallet boy September 23, 2008