To fight the chill by drinking copius amounts of alcohol.
At a bar Its getting cold out there, better put on the juice jacket before we go.
by Brooks Masterson June 17, 2005
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Juice(Joose)Jacket(Jack-it)
13th century. Via French jus lid < Latin , "broth, sauce, man-goo capper"

Hey yo! If your gonna hit that, you better slap on a juice jacket homie! I heard she likes to getjuice boxed!
by egg-lom October 12, 2007
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A very fine variety of liquor, or any liquor that can be hidden in a jacket pocket. Especially useful for dry gatherings and overpriced venue drinks.
Hey man, did you bring the jacket juice? Ill go get a soda!

Hey man pack the jacket juice. Grandma is gonna be joining us at breakfast.

This is my mother, she enjoys vodka, but she was nice enough to leave the jacket juice at home this time
by Djesjay January 28, 2016
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