When you decide to not wear underwear, and you can see those lines leading to your penis. This only applies for males, females is called Paris Hiltoning.
"Hey man I just zipped my dick up, I shouldnt have went brad pitting tonight"

"Hey man I think that girl is paris hiltoning"
by Daniel Bolton October 27, 2005
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A small hole (pit) dug to hold brads (nails).
We were digging a basement. Next to the basement, I had some Brad Pits. I reached into one for some nails and there was a goddamn tarantula!
by John Dipp May 5, 2006
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