Backdoor Key

n. The act of opening one's backdoor, that is, anal sex

"Hey, you know I wanna be your backdoor key, its about time I opened it up"

John: "Did you hear about Matt?"
Chris: "No what happened?"
John: "While he was fucking Shirley she gave him the key to her backdoor"

by Mitch Tight and Bright March 22, 2011

backside butterfly

a position used during anal sex when a guy vigorously takes his partner and strokes them from the back, moving his arms in a wing-like motion.

me and my girl tried a new thing called the backside butterfly last night, i must say it was pretty exciting.

by playboiiii69 May 22, 2011

backdick

It is when a penis (no balls) is tucked in between the legs of a man and wagged like a tail.

Kyle and Nolan shocked the class with their glorious backdick.

by Pabbers November 20, 2013

backside bug

When getting a virus that only causes diarrhea.

I think I know why I sharted, my nephew gave me his backside bug.

by madcladder September 4, 2014

backdrafting

When you fart but you are unsure if it stinks or not, so you back up several feet to determine it's level of toxicity .

Richard was unsure as to how bad his fart was, so he began backdrafting into it. Turns out it was one of those farts that could eat the stitching out of Levi's.

by Stan Mars June 28, 2016

Backdoor Thot

A person who comes in through the backdoor of your house, at your request, for: sex, making out, or any intimate actions for free.

“Dude, I wanna hook up with someone sooo bad”
“Ask Jenna”
“That’s right she’s a total backdoor Thot”

by President Poverty November 16, 2018

backdoor houdini

When your girl sits in the back seat and jerks you off while you drive

Canlin said hey Bro last night onmy way home my bitch gave me a backdoor houdini

Tent said nice bro

Jerking off while driving secretly

by Averagepennis December 11, 2018