In new york this means to claim something that you believe is true

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.

The Jack to Jack (Back to Back Jack) Is the attempt to masturbate immediately following a previous orgasm.

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.

Person who is kind & wholesome until pushed over the line. Reference to baby JackJack from "The Incredibles" Movie.

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.

A Product made from mixing a bowl of "Apple Jacks" with a can of "coke." This is said to have great effects on your body and increase your testosterone level and get you JACKED.