dumpbutt 

When a womans butt is saggy, flat and generally offensive. Such butts are neither round and supple nor has any hope of such glory. Dumpbutts look just as they sound. The cheeks often have a square droop to them as though they had a load of poop in their pants but just kept on going without changing thier pants. Frankly it looks like their butt is a diaper of flesh and cottage cheeze. When a dumpbutt is on the go it looks like their cheeks are flapping because of flatulance.

"My lord, is that a dead animal in her pants or does she have the worst dumpbutt that I have ever seen?!"

"Everyone run, some girl on the the dance floor just broke out the booty dancing and her dumpbutt is pwning everyone wild."

Hey, You! Yeah, the only girl in the room with a Dumpbutt! Yeah you know who you are!

dumpbutt by Lord Grosvenor June 13, 2006

dumbbutt 

can be used as a less offensive term for dumbass; a stupid or dumb person.

You're such a freaking dumbbutt!

dumbbutt by Me_Myself_&I April 21, 2009

dumbutt 

An idiot, a butthole, or a stupid person who always messes up.

What a dumbutt!

dumbutt by xXx_The Memester420_xXx February 22, 2017

Dump Butt 

When a person has overly large pants on and they sag down as if there were a dirty diaper inside.

"Kate's shorts were so large on her bottom, she had dump butt"

Dump Butt by Golden Lady January 26, 2014

Dumbbutt 

^informal^
1. something or someone that is considered to be unfair in a way
2. someone who is considered to be ridiculous or that has a butt that is dumb

1. The students thought the teacher's way of grading was dumbbutt.
2. The dumbbutt dinosaur ran right towards the meteor that was about to kill it.

Dumbbutt by Spongesquid27 February 11, 2014

dumbutt 

A guy (person, as a non-sexist term) who has a suspiciously quiet rear end. Can also be used as an insult, or general slang term for rear end.

Do you have a dumbutt? (as a question)
What a dumbutt! (as an insult)
Man, my dumbutt is killing me! (as a slang)

dumbutt by Define The Dumbutt May 2, 2006

Dumbbutt 

Like dumba** but more appropriate to use.

That guy is such a dumbbutt!

Dumbbutt by Matthew678 August 20, 2019