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Fake Underwear Pants

Leggings worn as pants, with a long shirt that barely covers the ass
That girl is wearing some ugly ass FUPs, I can see her butt cheaks!
FUPs by The Discoteque Queen January 26, 2010
Related Words
Fat, Ugly, Poor and Stupid. An acronym for the guy at the bar that you turn down, even on an off night.
Ingrid: I think that guy likes you. He's been giving you the eyes all night.

Elsa: Eww. He's totally FUPS. I'd rather go home alone and organize my sock drawer.
FUPS by Veranda Collingwood May 9, 2011
Fups, known as Fat Upper Pussy Sweat, is the fat area above a vagina that vigorously sweats though the front of pants in extreme heat.
It's so hot today that she's got the fups.
Fups by Capt'n Nasty November 25, 2016
Its the bulge of fat that hangs over the gentalia area and is tucked into clothing, I.e trousers, creating a fups!
Fups by jam master jules January 12, 2012
Fups are fuck ups, errors, chaotic mistakes, be they made by people, organizations, courts, armies, whatever, anything and everything is prone to fups.
Me: Those guys made so many mistakes, I'm ready to tear them a new a**hole!

You: Dude! I know...they are total fups, plain and simple.
Fups by xtc283 September 26, 2022
"I went over to my friend's moms house and she left me a FUPS"
FUPS by purplepunch December 29, 2022