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.
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'retalking 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.