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1. A beast like mutant with many deformative features.

2. Often described as "it" and "it" will often provoke one to puke

3. Attention Whore
Professor X of the X-Men needed a mutant so vicious and vile that he summoned "Pegasus".

"It" terrorized all of humanity and "it" constantly spit words on the VeSti.
PEGASUS by TidesKast October 12, 2005
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The flying horse that we all want for a pet. Don't get it confused with "Megapus"...that's something else.

A Pegasus is massively fat yet somehow can still support its own weight with its giant wings. Usually of the white/Caucasian heritage.
"Look at the Pegasus flying! I'm sure glad it's not a Megapus!'
Pegasus by Hudo09 October 9, 2008
A gentleman who enjoys being sadomized/pegged by a woman.
I went out with Henry last night and it turns out he's a total submissive Pegasus. He loves to take it from behind
Pegasus by XXXPAN November 11, 2017
Pegasus: a sis gendered male who enjoys being pegged.
She called him Pegasus because he liked being pegged in the ass. She laughed, it was like pegging a sis gendered male.
Pegasus by Kitty Wallace April 12, 2018
The act of preventing sex; to be a cock block.
That guy is such a Pegasus!
Pegasus by pegasus545465464654654 September 26, 2010
its when you shove a water bottle full of acid up your urethra and make lil tay eat it out
hey lil tay wanna pegasus.
pegasus by okjhor June 4, 2018
A meme in the community of the YouTuber "Pegasus"
PegaSUS is mega sus
PegaSUS by GalaxyZedZee March 13, 2021