Person who is kind & wholesome until pushed over the line.  Reference to baby  JackJack from "The Incredibles" Movie.
Don't keep pushing him.  He's going to go Jack-Jack.
Be careful with him. He's got a Jack-Jack personality
Be careful with him. He's got a Jack-Jack personality
by moviedude March 9, 2008
Get the jack-jackmug. When a guy is jacking off and is interrupted by a second individual who "lends a hand" and finishes the job.Ideally,the interloper could be the wife,girlfriend,a hot maid,or cute neighbor girl. Strangely,the good samaritan could be a sister,grandma,brother or roommate.
by wolfbait51 May 24, 2011
Get the jack jackedmug. When one leaves his seat and calls jack jack which ultimately reserves that seat for him when he returns. Jack Jack was created long before Tap Tap and Jack Jack actually over rides all claims to tap tap. Originated in the city of Gig Harbor which was founded way before Tacoma.
by Chris Macky January 4, 2008
Get the Jack Jackmug. a dude who is always lifting big things.
when alcohol becomes involved don't go near bro, he will fight u
loves a romp
claims an amateur mui tai fighter would beat Mike Tyson
when alcohol becomes involved don't go near bro, he will fight u
loves a romp
claims an amateur mui tai fighter would beat Mike Tyson
by kinglegend69 August 23, 2022
Get the jack jackmug. To shit your pants.
by Assmonkey222 November 24, 2021
Get the Jack Jackmug. by Greg's Girl July 14, 2009
Get the Jackedmug. 1) Man that dude from the gym is totally jacked
2) Yo man! That freak just jacked my wallet!
3) That guy from the bank is jacked, did you see his car?
2) Yo man! That freak just jacked my wallet!
3) That guy from the bank is jacked, did you see his car?
by k7k July 7, 2008
Get the Jackedmug.