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."

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!"

by Right on, brah April 26, 2013

Rumptious

a Scrumptious Rump.

"Hey dude, that girl is Rumptious!"

by socialmediaocrity May 22, 2018

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?

by Cakehole September 7, 2005

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

by vulupmtious boy 188 March 19, 2019