using the backdoor

To penetrate the anus of a human being or some other animal if you're into the whole bestiality thing.

Angie got pissed at Jimmy for using the backdoor without anal-eze

by Elvis's Sideburns May 22, 2015

RAR where's my backie

POSH way to ask where your backie is :)

RAR WHERE'S MY BACKIE FERQIUN !!!

by ui3hewds May 8, 2021

San Francisco Backdoor

When a man warms white wine in his mouth and spits it into a woman's rectum. As the wine loosens the fecal matter, the man ejaculates inside the woman's butt. The backdoor is complete when the woman returns the wine into the man's mouth.

This is the same as a Turkish Backdoor, but with wine. Proponents of the San Francisco version claim the wine loosens more fecal matter than the Turkish version with water.

"Did you give her a Turkish Backdoor?"
"No, she wanted a San Francisco backdoor?"
"How many Backdoors are there?"

by Charlotte Hell February 18, 2022

backdraft

When a woman farts during anal sex. For a select few, this is looked at as something lovely or sexy.

When she farted during anal sex, it turned me on so much that I filled her ass completely.

by Devil January 4, 2004

Backdoor Cold-front

a Backdoor Cold-front is when you are having sex and a cold breeze crosses your butt.

I was bangin' this chick in the car when I got a backdoor cold-front, my nuts jumped into my throat.

by Scerino December 31, 2011

backdoor daisy-chain

A backdoor daisy-chain is a sexual maneuver where three or more guys fuck each other in their assholes simultaneously.

Ben and Joe came to our pod the other night, and we ended up having a backdoor daisy-chain -- I got to be in a middle position - fucking and being fucked at the same time.

by USAF Cadet June 28, 2021

backing up

To carry on drinking alcohol after vomiting due to excessive boozing

Barry did a great job of backing up after his last vomit

by Rahoolduke August 24, 2007