1 definition by J Benj

Top Definition
pretty self explanatory. An act of jerkin it, or tuggin the bugger. Otherwise known as masturbation.
Jon: "Yo, did you do your english assignment last night?"

Me: Nah man, I was preocupied jackin the beanstalk.

Jon: You been jackin the beanstalk AGAIN?!

Me: 3 times a day bro.
by J Benj October 12, 2007

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