Top definition
A girl with a big ass / booty.
Context:
British slang / grime and trap music.
Man wants a gyal with a big back.
by Agrith July 05, 2016
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2
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! 😍
by vvxvy June 26, 2016
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