The act of jerking off (typically a man), especially to the point of orgasm.

Originates from the term "jacking off" as well as the similarity of the "cracking" sound from performing it and the opening of usually alcoholic beverage bottles.
It is also a popular perversion of "cracker jack", the brand of caramel corn.
Roommate: "You two were so loud last night! I heard you cracking jack so loud I couldn't get to sleep!"

"Yo, she was cracking jack so hard i almost passed out!"
by J. Gam January 17, 2008
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Random guy: your kinda gay. Me: your really jacking my squash right about now
by Kylethajit September 28, 2021
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your not getting it back it’s took/stolen
Anna asked for her money back but imma bunk jack
by Gue white November 17, 2020
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Jack DUFFY is a mincer who had a big cock and is very dordy but if you get on the wrong side of him he gets his bellend and turns it into a alien with a ray gun and fucks u hard while firing the bullets in the sensitive areas!
Jack DUFFY has a big cock with a special bellend
by Pussyslayerscott May 29, 2018
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Jack fowler is an absolute king of the fittys (guys plz accept it’s just a funny joke 😂)
by Hellooooodhdbejejsj June 30, 2019
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The king of fitties. No one can beat him.
“Jack fowler is so fit
by Ilovejackfowlerxxx June 30, 2019
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