a person who takes delight in sniggering while masturbating themselves without anyones knowledge and the removal of their trousers
Stevie D enjoys a jack in the kacks during free class in the top study
by aybsteve May 5, 2005
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someone who enjoys fondling their privates (preferably under tables) without the removing of ones trousers
"Here G man stevie D is having another jack in his kacks"
by Ramboisawab May 5, 2005
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