1. An ass.
2. To have anal sex.
3. To fall asleep with someone's face next to your bare ass.
1. Wow, that is one back door I want to grab.
2. We went back to his apartment and he back doored me.
3. I woke up to realize we had been back dooring it all night.
When someone you trust sneakily takes your girl, job, friends.
He was my friend and then totally back doored me with my girl
When someone gets setup for a robbery or murder by their own people
I don't think Eddie's murder was random, I think he got back doored.
To cut someone out of a transaction (e.g. drug deal, embezzlement, etc.).
Minerva: I was involved with embezzlement and he was too. But I wasn't gonna back door him and cut him out!
Back door
1) A secondary entry/exit door, normally located at the rear of a propety.
2) A slang term for the anus
1) Glenda's back door was jammed shut, so she had to call the locksmith in.
2) Tom fucked Glenda, up the back door
Refers to a person's anus in the context of anal intercourse.
Sally likes it in the back door.