to leave a pub/club/party early to go home to bed without telling anyone.
sam; where's nick gone?
dave; oh, i think he has just back doored it, he has been being a bit of a girl tonight.
sam; god, he always has to back door it, what an idiot, i have just been to the bar and go thim a pint!
by sam-mac August 09, 2007
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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.
by 051 melly February 20, 2020
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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!
by ZXY&ABC July 22, 2019
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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
by Coffee_addict July 18, 2004
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1. dishonest

2. the anus

3. a malicious computer program installed to allow access by hackers and other malware
I think I just found a back door convenience store.
by Light Joker April 05, 2006
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In the doggy style position, to act like you're going to stick your dick in the pussy but you stick it in the ass instead.
I bent that bitch over, she thought I was going in the pussy and then BOOM, I went in the back door!
by ThatMotherfucker December 16, 2014
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