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A term for a girls ass. When a baby is born the baby is thrown at the mothers ass to make sure the infant does not have cancer. Men naturally like women with a fat ass so that the infant wouldn't be harmed in this act and so the infant would hit a fat squishy ass and not a bony dry ass.
Hey bro the chick has a mighty fine Thicass.
Thicass by NaughtyTestical72 October 1, 2018
Related Words

Thanassi 

The fucking goat of all men. He is packing the biggest cok of all time and gets all the girls
Thanassi, yeah he is the fucking goat
Thanassi by Giga-Chad September 13, 2021

Ella thin ass bitch 

definition for ella is ying yang pale as fuk and hair black as fuk.
claude le bg ; were the fuk is ella
marie celestine; i dont k any ellas ahh you mean that walking ying yang called ella thin ass bitch

Thinaesh 

look its young sexy mother fucker aka Thinaesh
Thinaesh by urdad42069 May 8, 2019
A person who refuses to shout a round of beers. Guys named Benny or Rory are often referred to as tinass. There credit cards are covered in dust and often their wallets are brand new because no money has ever been inside.
A Tinass is the first person to yell “I’ll have one” then fades into the background come next round.
oi Ben ya Tinass!!”
Tinass by TinassHunter October 28, 2017

thin ass 

A really skinny man/women.
Hey, did you see Connor yesterday?
Yea, he is a thin ass.
thin ass by KWx August 31, 2017