I was standing in a queue the other day and I saw this girl from behind and she looked absoutely beautiful but when she turned around I realised she was a back beauty.
by goldfishmonkey May 23, 2007

A promiscuous woman who engages in coitus with many different partners and thus should attach a mattress to her back to increase time efficiency.
by Nick Ryan and Dean Gomez September 10, 2007

"That God damn shadow back walks like he owns the fucking street."
"Every member of my family, for every generation, was fucked by a shadow back in every orifice!"
"Every member of my family, for every generation, was fucked by a shadow back in every orifice!"
by Max Hazard January 10, 2009

Sodomy on a golf course.
Mark and Tony played a lovely round of golf and as the course was wide open, so too was Tony's assehole as they did a Back Niner between holes.
by Jimmy Dink July 11, 2017

A very significant bowel movement.
Thad: Do not go in the bathroom for the next hour!
Chad: Why broseph? The frat party starts in 30 minutes!
Thad: Trust me! Let it air out!
Chad: But why?
Thad: I had to back one in. And it was a healthy one too!
Chad: Huh?
Thad: You know: Dump some trout, Drop the kids off at the pool, Let one rip.
Chad: OK I gotcha. You could have just sent you took a massive dump.
Chad: Why broseph? The frat party starts in 30 minutes!
Thad: Trust me! Let it air out!
Chad: But why?
Thad: I had to back one in. And it was a healthy one too!
Chad: Huh?
Thad: You know: Dump some trout, Drop the kids off at the pool, Let one rip.
Chad: OK I gotcha. You could have just sent you took a massive dump.
by ZXY&ABC July 15, 2020

by bhigaman November 17, 2006

1. Standard definition involving the shift of one's body backwards.
2. Action that Roy Jones was forced to do. Also a kick as move on the dance floor credited to the hit song.
2. Action that Roy Jones was forced to do. Also a kick as move on the dance floor credited to the hit song.
1. He was so repulsed by the odor omitted by the man's asshole he was forced to lean back.
2. Todd impressed the ladies on the dance floor when the song "The Rockaway" forced him to lean back.
2. Todd impressed the ladies on the dance floor when the song "The Rockaway" forced him to lean back.
by Steven Muntner *see RAT-MAN February 28, 2005
