Fat back 

A big ass.

Boy#1:Damn look at that girl son!

Boy#2:Ugh man I know she got a FAT Back!!

Fat back by Expierence February 4, 2010

Fat Back 

A big booty.

Damnnn, She got a fat back.

Fat Back by KnightyRoyal November 8, 2018

fat back 

The flab that hangs over and around the back of a fat woman's bra. Also rolls of fat that incorporate the undrarms and shoulders of said fat women.

have you seen that chick eat? No wonder she's got a ton of fat back on her.

fat back by jotthedot April 19, 2006

fat back 

The layer of fat that runs along the animal's back. It's VERY salty, and yet you can't stop eating it.

I don't care that it's making my blood pressure sky rocket, pass me another piece of fatback!

fat back by mima phat April 17, 2005

fat back 

the pubis area in which your pubic hair grows; the area above the penis or labia

"taylor couldn't reach cam's cock, because his hairy fat back was in the way."

fat back by gimmi mora head February 19, 2007

fat back 

Also a layer of fat that runs around an unhealthy persons waist

Tim, awww put ur fat back away your making me sick.

fat back by Mr Melon May 24, 2005

fat back 

Southern word for women who has rolls of fat on their back.

Damn bud look at that fat back

fat back by BamaArmy January 13, 2016