N. Another word for "a condom". Used to cover the jimmy (penis) and protect one from having sex.
"Today i bought a jimmy sack for my 3 inch weiner
by CavZzZ March 11, 2006
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another word for jimmy tap but much more vicious
"Hey, do you know what a jimmy sack whack is?" "No, what is it?" "I'll show you." "Oww, why'd you do that, now I'm not going to be able to have kids."
by Beegis June 23, 2006
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