look up any word, like blumpkin:
 
2.
noun. 1. When lying down under a blanket, a hard on that resembles a knee.

Random Girl: "Jamie, move your knee. I can't see the television."
Jamie: "That's not my knee. That's a knee high!"

by Cindy February 14, 2006
 
1.

Shorts that only go down to your knee (maybe shorter).
Back in the day, people wouldn't have their shorts down to their ankles like people do now.
Haven't you seen old school ballers from the NBA? Their shorts would be at their knee caps or shorter.

About the example: When Nas first got into the rap game, with the album 'Illmatic' back in 1994, people weren't wearing these huge over-sized shorts that some people do now.

When Nas hit the scene I was still rockin knee-highs - The Game on 200 Bars and Runnin
by JGuzmannn February 03, 2007
 
3.
Similar to "back in the day". Usage signifies that you have known said person for a long time; technically since you were little kids who were only as tall as the lower leg of an adult. Your height was "knee high".
Aaron: Hey man, that kid Sam is a real chiller. How do you know him?
Ben: He's been my boy for a while. I know that kid from knee-high
by marshy boy December 06, 2006
 
4.
A name for a small drugs child know also as James Roberts.
Oi Kneehigh, over here.
by Callum Salfield March 11, 2005