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 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

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 tits

when a woman has too much fat that it bulges from her back causing the back tit affect

oh man look at haileys back tits i dont need to reach around the front on her

by andrew whitter January 13, 2009

back waxer

Male homosexual. Relates to the act of ejaculating all over his partners back after anal penetration.

"Gary is a real poo jabber"
"Yeah he is a bit of a back waxer"

by MickyV September 11, 2009

Back Stabber

One who pretends that they want to be with you but are only using you to get away from a current relationship, and then will dump you as soon as they find another sucker to take them in.

Dude, don't let that back stabber Amanda anywhere near the internet. She'll only use it to find an excuse to ditch you.

by Kneon September 5, 2013

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