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Underagers getting random strangers walking past to go into a shop and buy alcohol for them, literalluy jumping into the shop for them. Usually targeted are junkeys, alcoholics, students and foreigners.

OriginatedGlasgow/ any poor area with drink problems
Jason " How are we gonna get that booze for tonight"

Jonny " Theres a tramp over there. Come on lets get a jump in.
by Jondooo November 02, 2009
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Sep 6 Word of the Day
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Damn that was a steezy ass kickflip son!
by niggaliciouszor April 29, 2007
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A way to get in to the gang loop, it's just one way.
The east side hard skulls gonna jump in on me bout 54 guys gonna welcome me to they gang.
by Solid Mantis October 30, 2016
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A fight, gang fight, free-for-all, punch-and-jab, fight
I was involved in a jump in with some kids.
by Renopup February 09, 2008
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to be in the process of jumping

description of a club or party no one uses anymore
A) IM jumpin your ass

B) THis parties jumpin
by pwnz0r September 19, 2003
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