A strong minded man or boy, often gymnast and a show off, dates a lot of girls, steels and brown hair. Works hard and shows off his gynastic skills
Girl: "why would i date u, u have nearly gone out with the hole school"
Boy: " i know eight im such a jack
Boy: " i know eight im such a jack
by ~Da- banta~ June 11, 2015

A tall, skinny, blonde Caucasian kid with a brain to rival Patrick Starr and Big dick energy to rival Dwayne Johnson. He spends too much time online and never goes outside. Generally nice when you meet him, but gradually becomes more and more of an ass as you get to know him.
Wow Jack this is the fourth time you’ve told me to “Kazoom off a A cliff with a bus full of special ed kids” in 45 minutes. It’s not funny anymore
by Yung Crepe June 29, 2020

a complete animal in bed he is the god of sex he is soo sexy normally has green/blue eyes they normally love there girl friends soo much they have massive penises aprox 12434234" long and they are verry loving in bed :) and they normally have girl friends called holly who are verry beautiful and awesome
jack
by jdfafas December 1, 2011

To jerk your dick until you cum into a girls vagina because it is too loose and you are getting bored.
Oh man, Miley's pussy was so loose last night that I ended up spending the last 20 minutes Jacking In her.
by UrMomsBujina July 15, 2010

by the man1174 September 29, 2012

by rasoool March 26, 2003

This Boy has a lot feelings that go to him. He is a very musical guy and loves to joke around. He is pretty smart in a lot of things but not the smartest. He’s very kind and strong. If you ask him to do something he’ll do it. One of the best friends you can find, he usually likes the Smart and witty girls that are very pretty with a fiery personality. He is very cute and very quiet at times, he has a lot of secrets to tell, but never come between a jack and his Girlfriend, because he will beat you up.
by SuperGirlyFunFacts January 31, 2019
