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
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Underpants parties are events that take place when two adults (or more) are quite fond of of one another and they decide to have a party where the only articles of clothing allowed to be worn are underpants and accessories. They are invitation *only*.
Brandon: I hear that Ava is throwing an Underpants party.
Kathan: Oh I know, I was given an invitation.
by epicavacado August 13, 2015
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did you ever loose a pair of underpants? well those damn underpants gnomes come and steal them in order of world domination...of the underpants world.
Holy shit...ahhhhhh...there arter me again...shit...god...goddamn you underpants gnomes!!!!!!!!!!!!!!!!!!!!
by TwEEk18793&*%$$#! June 5, 2003
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1. Underpants Gnomes are small beings that come to Tweek's room at 3.30 in the night to steal his underpants, Tweek sees them, because he can't sleep - ever !

2. The gnomes steal underpants to make profit. How ?
Like this:
1. Collect underpants
2. ?
3. Profit

3. They even have a working song, like the 7 dwarfs.
Time to go to work !
Work all night !
Searh for underpants hey !
We won't stop until we have underpants!
Yum tum yummy tum hey !

Watch South Park, season 2 episode 17 - Gnomes

Tweek : They're taking my underpants!

Kyle : Will you stop with the Underpants Gnomes, Tweek, we have to work her..
by Rikke K.. November 9, 2006
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Under garments (usally refered to as underwear, or panties) that have been soiled in, previously used, or with the famous skid mark (poop stain).
"aww man, I got nothing but dirty underpants"
by Georgia MiKennin March 31, 2009
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a mild mannor high school principle, but when you snap your fingers he sheds his clothes, (minus underwear)to save the day. He was created by the author Dav Pilkey. captain underpants has numbious childrens books written about him.
captain underpants just gave that bad guy a wedgie.
your so cool your like captain underpants
by Vince Villella May 28, 2006
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The fearless sergeant at the Battle of Gettysburg, who single-handedly vanquished the entire Confederate army in one swift fart. Unfortunately, he was killed in battle, and is still remembered to this day as the nudest hero of the Civil War. He was buried in his own soil in Piqua, Ohio.
David: I just read about the one and only Captain Underpants.
Jake: He was such a great man.
Both: Amen
by Ezyman07 April 17, 2018
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