Fatacerous 

Having a large size, large bodied, or big buttocks’d.

Dang bro, that girl is fatacerous!

Fatacerous by Jing-Dangis May 29, 2018

fabaceous 

Literally "like a bean," but due to the 'fab' nature of the word, it can be used as an adjective for something cute or fabulous. Could also be used as an interjection.

This shirt is fabaceous! Score!

Danny, you are looking so unfabaceous today.

I just had sex! Fabaceous!

fabaceous by Pavaal January 14, 2011

fatacous 

The act of being extremely huge. Bigger than fat but smaller than obessous.

John: Wow that girl was so fatacous that when she rolled down the hill she didn't stop at the end but went right through the earth and kept falling piercing her way to the other side of the world!
Jim: Wow sounds like a fat ol' bitty!

fatacous by Razeeky November 1, 2011

fartaceous 

proud, pompous, above the common "lot"

John's such a fartaceous asshole

fartaceous by slow March 8, 2005