Rumptacious 

A woman's tight ass that looks like perfect juicy rump roasts that are delicious enough to devour yet jiggles when getting fucked.

I would love to slam into Jessica's sexy rumptacious with my dick.

Rumptacious by Pursiaxoxo July 21, 2017

rumptious 

Posessing a large, juicy booty and other applicable curves.

Ooh, that Shakira is so rumptious. Did you see all that junk in her trunk?

rumptious by Cakehole September 7, 2005

Rumptious 

A very well-toned, and shapely booty. Denotes certain deliciouness. Can refer to male or female.

"Did you see Becky leave the room? That, my friend, is a rumptious."

Rumptious by Daniel & Mike February 15, 2008

Rumptious 

(rUMP-shus)
When someone's backside is nice

"OMG look at her butt!"
"Yeah it's soo rumptious!!"
"Right on!"

Rumptious by Right on, brah April 26, 2013

rumptitious 

an adjective describing someone with a really nice butt (rump)

If you aren't rumptitious, don't wear leggings as pants.

rumptitious by JeremiahThomas June 14, 2010

rumptious 

the act of ones ass getting big

I tried getting new pants but my ass was so rumptious that it didn't fit after a week

rumptious by vulupmtious boy 188 March 19, 2019

Rumptious 

a Scrumptious Rump.

"Hey dude, that girl is Rumptious!"

Rumptious by socialmediaocrity May 22, 2018