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A complex device that can help prevent both overpopulation and intercellular war. This device can come in many different varieties - such as slippery, bumpy, and strawberry.

In other words, a condom.
Make sure you always wear a Jimmy Hat while wildly thrusting into the subject of your lust.
by Orange Dingo December 29, 2005
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3
"All the times I should have worn a Jimmy-Hat. All the times I said "what the fuck"" - nofx
by fatmike February 12, 2003
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4
The bitch looked kinda nasty so I made sure I was wearing my jimmyhat when I was fuckin' her.
by Anonymous July 09, 2003
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5
A jimmy hat is slang for a condom.
Before you dip your stick, put on a jimmy hat.
by Kahn.no May 25, 2005
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7
A condom. Great word to use when asking a guy if he has a condom and you don't want the chick that you about to shack up with to know what you're talking about.
James put on a jimmy hat before he his girlfriend jumped on for the ride of her life.

Scott took off his jimmy hat before he skeet skeet skeeted all over her g-unit.
by Kyle J. P. May 26, 2006
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