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The sensation of jamming, (to music, or anything) while chilling. Mostly done at home.
Did you see Tommy today? He was totally jillin out at his house!
by BrodoSwaggins October 03, 2011
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3
Masturbation- female specific.
Evey time you go jackin' or jillin', God kills a kitten.
Think of the kittens.
by j e walker April 28, 2003
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4
slang often used in the UK to express relaxation, Especially when on Drugs
"Dude is he dying?"
"No he's Jillin Like a Mofo!"
by Zach!!! July 11, 2008
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