backdoor sam

A person who has the Backdoor always open.

Here comes Backdoor Sam.

by BigBoi21 September 26, 2013

backdoor pilot

1) A protégé of the anal arts

2) Slang Phrase - Derogatory - Meaning Homosexual

Origin:
Backdoor (The anus, vis-a-vis anal sex. )

Pilot (A skilled individual who can navigate through tight spaces)

I didn't think I would like anal but he was one hell of a backdoor pilot

by atwatofgingers December 24, 2014

Backdoor Night

A night designated for anal sex.

It doesn't happen often, but when backdoor night finally comes around, my wife starts drinking at dinner in preparation for the anal sex.

by Kosher Joe February 1, 2015

backdoor matadore

(noun) one who has anal sex with the grandeur of that of a king, or to be more exact, an anal bullfigher.

Josh isn't no lightweight when it comes to anal sex-- hes a backdoor matadore!

by Wookiestick May 13, 2004

backdoor beauty

an attractive girl or woman who engages in anal sex.

"Hey Jon you see that girl over there?"
"Yea shes hot as hell."
"I wonder if shes a backdoor beauty."

by aka thadeaus April 18, 2006

brown backing

After any group or groups of persons, gay or straight, engage in anal intercourse, the man who's penis has been inside the other person's rectum, uses his now fecal covered penis to draw a picture, using the person's fecal matter, on his or her back. Sort of like a poopy game of Pictionary. The draw-ee, as it were, tries to guess what the draw-er is drawing.

"So check this out Bro, Josh and I were Brown Backing last night and he drew the logo for the Chiefs on my back! I totally got it before he was even finished! Brownbacking Kansas Governor Sam Brownback brown brown backing brownback

by Momma Rugburn February 11, 2015

backside attack

Proper: A chemistry term used to describe the transfer of electrons and subsequent bonding of a neucleophile to the back face of a molecule. The back side described is the chiral center, with subsistents in a tetrahedral formation facing away from the nucleophile. Once the backside attack is complete, the stereochemistry of the molecule is inverted.

chem eng slang: A difficult academic situation. It is often used to describe the difficulty of an assignment or a test. Synonymous with ass rape.

"Oh shit, that exam was a total backside attack!"

by Electrick April 17, 2006