Back on solid ground

Your first solid turd after a period of the shits.

Man, I never thought I'd be back on solid ground after that Mexican seafood restaurant I went to last week.

by Spybone January 5, 2011

Back'n'cheese

A fetish in which a couple are having sex doggie style, while the man eats macaroni and cheese off of his woman's back.

Friend 1: Dude, I totally had some back'n'cheese with that girl from last night.

Friend 2: Holy shit, that's insane! How'd it taste?

by MUFFINPIEZ January 27, 2013

back-up, back-up prom date

This is basically someone that you know will say go with you to prom if you ask them. This has to be a person that you can relatively stand for a full night, or else can stand to stand next while taking pictures and then ditch him/her for the rest of the night and hang out with that person that you actually wanted to come with. This has to be a person that you know no one else will want to ask, so they are definately available.

Steve is my back-up, back-up prom date, so I know that I am guaranteed to be going with someone.

by carolinimartini February 21, 2006

Back to the pile

Refers to a big pile of men having sex with each other as a means of protest. Spoken when a group doesn't get their way. First used on an episode of South Park.

Don: Today they announced another movie with the word "Movie" in its title. They just won't stop making them.

Rob: Shit. Well, back to the pile!

by William Batson April 12, 2010

back one out

In reference to defication

I'm going to go back one out

by Anonymous August 20, 2003

Back End of the Bat Mobile

The state of your Brass Eye soon after you eat a really hot curry.

"I had a Ring Stinger in the Benghazi restaurant last night, and now I've got a dose of Gandhi's Revenge. My arse feels like the back end of the Bat Mobile."

by Snapper240 July 16, 2005

back-stabbing bitch

Someone who is one of your best friends, and then they go and tlk shit bout you to your bffs.

-saxby
"that back-stabbing bitch was tlking about you today"
"dude wtf?????"

by guess who bitch. December 17, 2011