by Pen15lover69 February 2, 2016

A dumbass nigga who smokes weed and is a total dickhead. Usually a male, he has no life, and masturbates in the bathroom during lunch in school. He is gay as fuck, and will always be in your way. Don't ever go near thosse faggot 'Jacks'.
by aznfuccboi October 21, 2017

Stolen or taken. Usually something is jacked to prove one's skill at taking things without getting caught.
by QuiveringSpleen March 29, 2003

The next to me in the urinals must have been named Jack, due to his average to below average sized penis, with a slight lazy curve to the left.
by king_kongman12 March 19, 2017

Jacks are a man of their penis. They enjoy killing. Jack's are extremely untrustworthy. Jack's are usually motivated by cum. Jack's work hard and beats their meat. They show the same respect that they would show to no one. If people were to go behind Vincent's back or anything like that. He fart on them. But lose their trust. Jack's -1/10 are usually the Alpha of the pack. They enjoy dying.
Jack: Fuck you
by FallenAutumn December 14, 2018

by the pope June 11, 2004
