phatbat 

Used to refer to a large bottom. ("phat" meaning large and "bat" short for the British slang term "batty" which refers to the buttocks).

"Damn, that girl has a phatbat!"

"I know, right!? If it was any phatter, her jeans would tear right off."
"A guy can dream..."

phatbat by phatbat October 2, 2018

Phatlates

Pilates for phat bloaters.

Hi Jim, you lost some weight,what is the secret?
Hi Taffi- I am doing phatlates on a daily basis at local gym.

Phatlates by TaffiB November 24, 2018

phatmat

An addict to the game RuneScape who owns one of the games most rare items, a party hat. In addition, phatmats are usually members that play from australia, frequently making comments about the kangaroo population.

Guy 1: Dude, you are such a phatmat.
Phatmat: No! I don't play, and I'm not an australian bloke!

phatmat by laspace January 14, 2010

PhatButt 

Someone Or Something With A Big Rear End

BRO SHE HAS A PHATBUTT

PhatButt by KV72727 November 26, 2019

phatback 

roll of fat just above a fat mans penis which hides its true length.

when i pull the phatback i will be balls deep

phatback by georgedust October 19, 2008

phatbanging

so phat, you want to bang it.

Her sweet ass rack is quite phatbanging , I want to ask for her number.

phatbanging by RoAq January 16, 2008

phat bat 

to chill out, relax, take it easy

(question) you going out tonight?
(answer) no, just going to phat bat.

phat bat by pillsa February 4, 2008