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1 definition by Justin Gallagher

 
1.
only worn by true pittsburgh steelers fans, these underpants consist of gold markings on the front, markings on the back that can range from a black to a brown, and on the bottom consisting of both. can usually be found at the top of the dirty laundry pile the day after a big game, or more commonly still on the yinzer when he wakes up.
Boy, Justin sure was wasted during the game; he'll be waking up in his steelers underpants.

"Do the steelers underpants in the corner belong to Joey Nelis?"
"That's a stupid question."
by Justin Gallagher December 20, 2006