A person that is addicted to starbucks and/or usually calls great people "chu chu"
Someone:That person is so jack jack
by asdfasdfasdf October 9, 2006
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When numerous persons with the name of Jack gather and compete over who can pleasure themselves the best, most efficiently, or fastest. Any other competition parameter works under this term, but it must pertain to multiple Jacks masturbating.
"Hey homie, did you attend the Jack jack off off last night?"

"Yeah man! Jack was on fire, but other Jack finished in record time. I couldn't believe my eyes!"
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Jack jack sack attack

Jack jack sack attack
Jack jack sack attack

Jack jack sack attack

Jack jack sack attack
Angus:Hey Athur guess what

Athur:what
Angus:jack jack sack attack

Athur: shut up bean
by Angishangi January 14, 2020
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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
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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
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