1 definition by Thumbmaster Flex

The area around the crotch that mimics the shape of a phallus while wearing jeans.
John: "Dude, it's not an erection, it's just my Jeanis."

George: "I spilled hot coffee on my crotch, luckily it didn't soak through my Jeanis."
by Thumbmaster Flex November 17, 2010
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