Verb. The style of dancing employed when listening to Jacking/Fidget House. The term fidget house was coined by DJ/producers Jesse Rose and Switch, apparently as a joke. They had come to generally signify this cut-up style of house music. It has a 4/4 beat and a cut-up, glitch style which contrasts other dance genres such as progressive house and trance. The way in which it differs from other house music styles is that it usually discards the solo drum beat introduction, thus encouraging a more cut-up rather than blend mixing style amongst DJs. Other common elements of fidget house include vocal sample snippets and a prominent bassline which often bends in pitch, rather than progressing by the semitone
Get your jack on
I can jack to this
To jack is the only way to do it
by Mightyfool March 16, 2009
The Jack to Jack (Back to Back Jack) Is the attempt to masturbate immediately following a previous orgasm.
I attempted a Jack to Jack but I was to sensitive to continue.
by CharitableNinja February 9, 2009
They are two vine famous teenagers from Nebraska. They also have many good songs like "doing it right" and "flights". Jack Johnson and Jack gilinsky are also very hot.
Girl #1- I love jack and jacks song doing it right
Girl #2- Me too
by I love to turn up August 12, 2014
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
by moviedude March 10, 2008
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.
I was choking the chicken when my sister's hot friend barged in the bathroom and jack jacked me.
by wolfbait51 May 2, 2011
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.
When you get up, "Jack Jack".
by Chris Macky December 12, 2007