Top definition
Jacketing offsex (-0.886)
When a male tricks onlookers into thinking that his hands are in his jacket together (interlocking the ends of both sleeve holes) while simultaneously using one arm to jack it hard.
Female Onlooker : OMG, look at Lyle, he is so Jacketing off right now in the corner.

Male Onlooker: No I don't think so, he's just really cold and has both his sleeves connecting to keep in the warmth.
by Chocodiles March 29, 2012
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