any anal sexual conduct
I went over to Sue the Sluts house for some backdoor action. I licked, fingered and stuck things in her ass.
by Some guy named Kenny July 30, 2006

When a man tucks his penis between his legs so that it is facing backwards and the women gives him a blow job from behind with her face firmly pressed up against his ass.
This chick was so dirty last night that she gave me a backdoor BJ with her nose in my ass while i watched sports center
by BEEEEEEEEEEJJJJJJJJJJJJJJ November 13, 2012

"Ugh, my ass is sore from backdoor barfing all morning. I swear, if I have to wipe one more time my browneye will burst into flames."
by SnaggPDX November 15, 2005

by opotimus April 22, 2006

after returning from a tacobell run, and cumming in your girls ass, you ram her real hard, pull out, and watch her fart out the cum, in a blizzard like manner
by paul April 3, 2005

by Jacques Asse October 16, 2009

A person who refuses to enter through the front, but instead prefers the backdoor in both entering and exiting and in sexual activities.
I once met this guy who was a total "Backdoor Baldridge" and always used the trunk to enter and exit the car.
by Seth Gass February 1, 2008
