big back 

A girl with a big ass / booty.
Context:
British slang / grime and trap music.

Man wants a gyal with a big back.

big back by Agrith July 5, 2016

big back 

big back is the London slang for a big booty

Girl: So, what kind of girls are you into?
Guy: I like a girl with a BIG back! 😍

big back by vvxvy June 26, 2016

Big Back 

A big back refers to someone's back area and there thiccccc ass

Yo ur girls got a big back u know I would clap that

Big Back by Demane March 30, 2020

Big back 

Is what every mandem wants. For an example ciara got a big back and Shona everyboy wants that but ciara is a bonus because she’s leng and her body is spectacular

Look at Ciara with her big back

Big back by krumzy.y January 2, 2020

Big Back 

Big back is when a person’s back is overly large.

James eats a lot so we call him big back

Big Back by thebiggest back October 18, 2023

Big back 

An annoying person who is a fatty and always eating out

“Your such a big back”
“That’s why you a ugly big back smd “

Big back by Tiffanydaboss November 20, 2023

big back 

A term that people in black and urban communities use to describe someone who is fat.
It’s also used to describe a behavior or activity someone does fat people would do.

A random at the Thanksgiving function: “Oh nah, you’re really taking home 4 trays of food? That’s big back activities.”

*group of people starts laughing*

big back by Random Chick with a Fro February 12, 2024