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 March 28, 2016
Get a big back mug for your cousin Bob.
Aug 11 Word of the Day
A phrase to describe someone who is cognitively degenerating. Synonym of "going off the deep end". Can have varying degrees of severity.

Reference to the song "Hey You" by Pink Floyd. The line "and the worms ate into his brain" makes no sense in an otherwise linear and literal narration throughout the lyrics.
"My boyfriend has a total case of brain worms. He told me the cat was bugged so the Feds could listen in on us having sex..."

or

"You totally stumbled over that entire sentence. Can't speak English all of a sudden? What, do you have brain worms?"
by _Jez_ October 03, 2009
Get a brain worms mug for your mom Beatrix.
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
Get a big back mug for your brother Paul.
3
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
by krumzy.y January 02, 2020
Get the Big back neck gaiter and mug.
4
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
by Demane March 30, 2020
Get a Big Back mug for your friend Trump.