back vac

when a guy is screwing his partner from behind, and he pulls out and ejaculates all over her back and licks it up... yup, with his tongue.

i totally back vaced that hot bitch last night

by theshizzit February 1, 2006

Back-Slapping Betty

Another word for female masturbation.

"Oh girl! After my date with Joe I spent the night back-slapping betty!"

by h.l March 5, 2006

back in it

can be used while talking about sexual acts, workin it, puttin your back in it

ooh girl last night he put his back in it!

by Christine Smith August 10, 2005

BACK BLAST

The left over remnants from someones shit that are blasted on the back of the toilet.

Hey Tom, Thad just back blasted all over the toilet!

by jwc's July 19, 2006

back rasta

the right back seat, behind shotgun

"dude, i call back rasta! cheryl's short and i can make her move up her seat."

by nerf ball November 24, 2006

back splasher

An action caused by the effect of gravity taking hold on an enormous turd falling towards the bowl water of a toilet, which allows great forces of water to splash upward on the bum.

"Does this toilet has a bidet function or was that a huge back splasher!"

by William P. January 6, 2008

Back Spooge

After rough anal sex with either a male or female, as a man reaches orgasm he pulls out his penis and ejaculates/cums on his partners back, often followed by wiping and smearing his jism covered helment accross the back.

"Oh god, i backspooged all over you"

"As I pulled it out his ass, there was a lot of back spooge on his back"

by Zu Amir February 25, 2008