thumbass 

someone who texts while driving

some thumbass drove off a bridge and drowned the other day.

thumbass by RiskyDevil February 26, 2010

Thumbass 

An individual who achieves orgasm by inserting their own thumb in their ass

“I really liked him, until We were in the bedroom, where I learned he was a thumbass”

Thumbass by thumbass99 July 26, 2021

Thumbass 

A person who; Is exceptionally stupid, Exceptionally thumb like in appearance-Oft bald or Rectangular- or even just exceptionally annoying- usually purposefully so-.

Ex.1

“God, Greg, You seen those recent photos of Musk and Dwayne”?

“Yeah dude, They look like such thumbasses honestly.”

Ex.2
“Damnit Mark! You fucked it up you thumbass!”

“Hey its not my fault you didn’t tell me to check the pressure gage.”

Thumbass by Shit Tikler April 28, 2024

Thumbass 

When saying "dumbass" is too rude, saying idiot is too serious, and you feel like they would thumb themselves.
Basically an idiot who fingers himself with his thumb.
Could be a she, but used against is more powerful but less rude because it sounds silly.

Bob: guys, what the square root of 2 is 1, right???
Dave: no, thumbass, it's 1.41421356237 simplified heavily.
Bob: it's definitely rational though, right?
Dave: …
Bob: right???????!!!??!?
Dave: this is peak thumbassery...

OR

John: Bob, are you gay? I saw you eating a burger.
Bob: how are those even related, thumbass? Get your head straight and be straight, it's obvious that you are extremely gay for Dave.
John: no I'm not... *blushes very annoyingly)
Bob: SHAJOFUGINMOUTH

Thumbass by applesaue September 16, 2025

Thumbass.noidle 

One is a thumbass.noidle if one is a gennderfluid icon who is good eith costumes etc (like cosplay and stuff)

Kade is such a Tumbass.noidle did you see kade's Foxy Five Nights At Freddy's cosplay

Noodle's Undyne Undertale cosplay proves Noodle earned the Thumbass.noidle title

Musician Dorian electra is a thumbass.noidle cuz the are hot and do drag for their music videos and most importantly cuz I said so

Thumbass.noidle by nyanyameowmeow September 6, 2021

Thumassticated 

"To stand around doing nothing, ergo to have one's thumb up one's ass."

I came up with this word while working as a daily Assistant Director on the set of "Death To Smoochy" whereby I spent 18 hours one particular day doing absolutely nothing.

'Workwas soboring,I was totally thumassticated.'
'Bill is so lazy,a complete thumassticator.'
'This jobis thumassticating.'
'I have no plans but to thumassticate.'

Thumassticated by ricardotoronto April 6, 2009

thumassticate

(verb)standing around with your thumb up your ass. in effect, to stand around doing absolutely nothing.

1.There was nothing to do but thumassticate.
2. He's such a thumassticator
3. "what a boring day, i was totally thumassticated".
4. she exemplifies the world of thumasstification.

thumassticate by elkfeld October 19, 2004