Thass

similar to cankles, but pertaining to the "ass" combining with the "thighs".

Man, what's with her thass? I can't tell where her thighs stop and her ass starts!!!

by Nateus April 17, 2010

Thass

Thanos’ absolute unit of a thicc left asscheek

Look at that Thass

by Thass October 1, 2019

Thass

Where a behemoth-like lady/midget (could be a midget they aren't something we types call "very well heightened-off-the-ground". And in due to such circumstances, these ladies legs turn from fat uhh fater. So-so-too many hungry man's.
It's where some most likely depressed 50 yr old gives up and gets so fat where the fat ass thigh merges with the fat ass.
AKA THASS.
Thigh/Ass = fat thighs merging together with the fat ass.
Looks like zeus mixed with the kragon from clash of the titans.
Hi, Wal-Mart can I get a job as a greeter? Thanks

"Wow, ever heard of the stair master or even walking, this isn't what's eating gilbert grape day? - although I do know that u cant wear white after labor day sooo donkey punch much? "I see the thigh...wheres the ass?" "Oh honey, that's a thigh-ass" "Oh, a Thass?" "Yeah shut the fuck up and make me some michelinas macceroni and cheese. And microwave it this time you fuckin scum." "And is that a FUPA?" "Oh hun, we'll save that conversation for another time."

by CSI Los Angeles:W/ChrisOD&LLCJ June 4, 2010

Thass

A very Thick Ass

Me: Damnn, Did u see that THASS?
Donald: yuh bruh she stupid thick

by My handle is a giant genius p January 3, 2018

thass

The region between your thigh and your ass that pops out to the side when you walk. Usually occurs with girls who have big thighs and a big ass.

man 1: look at that girls big ass!

man 2: yeah but look at the nasty thass that comes along with it.

by kiki swag April 19, 2009

THASS

A mammoth, massive ass that spills wide and heavy onto the back of the thighs.

Lamont: Yo' Mell, look at the ass on that stallion! Unh....its so damn big, I can't believe it (stares in atonishment)!

Mell: That ain't no stallion! That's Schwalla. Her swoll thass makes her waddle when she walk.

(both laughs out loud; grab/rubs nuts)

by SeanBC214 October 12, 2011

Thass

Much like Cankles, where the ankle and leg are one, Thass is a terrible condition where the thighs and buttocks area are one smooth surface. there is no difference between the two.

Dude A: Man, that chicks ass is so low.
Dude B: Naw man, she has no ass. Its just thigh.
Dude A: I'm confused, Where is anything?
Dude B: That chick has terrible Thass!

by GunzFayle July 22, 2016