Pomposterous 

Preposterous for special people.

Don't be so pomposterous.

Pomposterous by Dannnnny July 17, 2012

Preposterous boast, but alas 

Replacement for “weird flex but ok” because it’s overused

Random person: “I didn’t lose my virginity because I don’t take L’s.”
Me: “Preposterous boast, but alas.”

Preposterous boast, but alas by Fresh Timbs October 29, 2018

preposterous 

adjective meaning something that is absoloutely absurd and/or doesn't make sense.

The website preposterous.ca doesn't make any sense!
It's preposterous.

preposterous by lurker August 14, 2004

Composterous 

1. Composing yourself in a bitch like manner. i.e. composing yourself preposterously

2. Scenarios: consisting of events that leave you flustered.

Gabriel was using Mikes pillow as a footrest, Mike said "You're being fucking composterous"

There's four pieces of pie and you're the fifth person, how fucking composterous!

When your Ho doesn't want to fuck! "Bitch you're being composterous!"

Composterous by composterous inc November 19, 2009

pogposterous 

The best idea anyone has ever had in the universe. It is simply preposterous that you would assume this idea is not poggers. Something so incredibly terrible that it is poggers.

"Just killed a woman... feeling good" - TommyInnit

"That's so pogposterous Tommy" - auto-generated Wilbur tweets

pogposterous by Ghostbur's Long Lost Fussy May 31, 2021

Preposterous Battle 

A battle where two or more friends compete to use the most instances of the words preposterous or preposterously.

"It is preposterously preposterous how preposterously preposterous this preposterously preposterous Preposterous Battle is, and it is preposterously preposterous when people say preposterous, preposterously, or preposterously preposterous in a preposterously long sentence.

Preposterous Battle by International June 26, 2013

pimposterous 

Unbelievably smooth.

His outfit is totally pimposterous!

pimposterous by The One and Only Force November 27, 2005