Back Alley Brain Transplant

The act of being dragged into a back alley and having your face punched in..... and your brains punched out, figuratively speaking.

Tom: Hey, have you heard all of those kids obsessing about Twilight?

Steve: Yeah, I want to give each and every one of those kids a back alley brain transplant

by I'm_Not_Violent April 4, 2009

big back

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 5, 2016

back titties

back fat so big it looks like titties on your back. In some women, they are actually bigger than their real titties.

"Damn those are some big back titties"

by lkmoose87 December 16, 2007

back pack back

A person who has excessive back fat to the point where it looks as if they are conceling a back pack in their shirt.

"wow I thought that lady had a back pack on but she is just a back pack back".

by the one they call wonka March 3, 2009

Turtle-back Sack

When a males scrotum is hard like a turtle's shell.

Man, these tighty whities gave me a turtle-back sack.

by Ank D. Holla January 8, 2009

hanging out the back

Shagging!

I hung out the back of your mama last night!

by Paddy October 21, 2003

back door action

Sticking your Man-Sausage in her Butt-Hole

by Anonymous June 18, 2003