State of being in absolute "pimpish" synergy. Mind, body, and underpants coming together in an ultimate state of carma leading to divine intervention and infallability. Most often associated in situations dealing with the opposite sex.
Iceman: Dude, did you see the funbags on that dime piece?

Johnny: I am so silly in the underpants Ice. Permission for fly by.
by Sleepy John April 29, 2008
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Captain Underpants: TRA LALALALAAAAH
by Kitty1017 March 7, 2010
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A general term for short-ass freshmen (occasionally uperclassmen) who have yet to hit puberty and appear to be in the fourth grade (both in physical appearance, psychological development and writing ability). Usually have some strange/repulsive/childish personal habits (Ex: playing one-man football). Non-anime boobies are like kryptonite to them. Often carry airport bags in lieu of backpacks, believed to be full of stolen underpants (this cannot be confirmed due to their kung-fu grip ability), suspected to be a part of the shadowy and sinister "Phase 2". Reviled by all but the most desperate or demented fanboys and otaku. Sometimes abbreviated to UPGs.
"you wanna hang out in Steve's room?"

"nah, the Underpants Gnomes are in there watching Pokemon again."
by Natepalm October 18, 2003
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A condition suffered by a person or persons that strive towards a given goal but with absolutely no idea how their actions or planned actions will actually achieve the desired result.

Phrase derived from the underpants gnomes characters from the TV series 'South Park' that collected and stockpiled used underpants for the purpose of making a profit but had no idea of how to actually achieve this.
Demonstrators protesting for nuclear disarmament but not considering how they would protect the country when nuclear equipped aggressors decide to attack suffer a severe case of Underpants Gnome Syndrome.

Ex UK Prime Minister Gordon Brown suffered a major case of Underpants Gnome Syndrome when he thought that reducing VAT (sales Tax) by 2.5% last year would significantly stimulate consumer spending.
by brightstar555 August 11, 2010
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Someone who is so unpleasant to be around or even look at that he becomes no more than a turd to society. Not only that, he is a turd on society's Y-fronts. It would be benificial not only to society but to the Y-fronts of said society if said unpleasantries would kindly fuck off. Commonly used for thieves, homosexuals, and germans.
"Hitler, what a dick, I would go so far as to say he was a skidmark on the underpants of society."

"Get out of my boxers you fag! You're no more than a skidmark on the underpants of society!"
by D4Bullz November 24, 2006
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A condition suffered by a person or persons that strive towards a given goal but with absolutely no idea how their actions or planned actions will actually achieve the desired result.

Phrase derived from the underpants gnomes characters from the TV series 'South Park' that collected and stockpiled used underpants for the purpose of making a profit but had no idea of how to actually achieve this.
Demonstrators protesting against nuclear power but not considering how they will pay the ever increasing cost of power derived from the diminishing fossil fuel supply suffer a severe case of Underpants Gnome Syndrome.

Ex UK Prime Minister Gordon Brown suffered a major case of Underpants Gnome Syndrome when he thought that reducing VAT (sales Tax) by 2.5% last year would significantly stimulate consumer spending.
by brightstar555 August 11, 2010
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The Underpants Gnomes are mystical creatures that bring you back all of your missing nugs at the most opportune times. Whether you lost your frosty green nuggets during a fumble in the car, or you lost your whole sack during a drunken rampage, the Gnomes are sure to bring back what is rightfully yours in due time. If they happen to give your pot to someone else, do not worry, for the Gnomes are fair and will reimburse you at a later time.
They dwell anywhere that you may have been smoking pot, but these honored creatures never show themselves. Regardless, they must be thanked and honored when they present gifts.
"I dropped a couple nugs on the ground right here and they just vanished! WTF!"
"Ah bummer bro, it was probably the Underpants Gnomes."

"Fuck yeah, check this loud loud I just found under my seat! Must've been the Gnomes."
by The_Hemperor February 17, 2014
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