A self centered jerk, is very ugly and not a very good person or friend to you. He doesn't think much of others.
by Lynsey Lover July 28, 2012
Get the Jackmug. 1. "I just got jacked! Someone took my iPod!" or someone got an unfair trade "You got jacked!"
2. "I'm jackin' off."
2. "I'm jackin' off."
by Kait16lyn March 8, 2008
Get the jackedmug. A beautiful man, inside and out who makes you feel like the most special person in the world. He is very intelligent and thinks about others. He puts the ones he loves before himself and is always up for a good conversation. If you meet a Jack, you will most definitely fall for him!
by Guitar playing goat June 13, 2016
Get the Jackmug. Dave was really Jacking on today. Not only did he complete all of his work ahead of scheduled, he also helped his coworkers finish their work and he cleaned up the lunchroom.
by MFS27 July 2, 2020
Get the Jacking onmug. 
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
Get the Jackmug. 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
Get the Jackmug.