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Noun The act of pleasuring oneself while doing something else.
My girlfriend walked in while I was multi-jacking. I had porn on the computer and CNN on the TV.
by restaurant refugee December 22, 2008
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2
THIS SHIT IS INTERRUPTING MY WACK OFF BEFORE WORK TIME FUCK

Friend WACK OFF AND DRIVE TO WORK ITS CALL MULTI-JACKING
by aardvarkcum September 05, 2018
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