When you wipe your ass with cheap toilet paper and your finger pokes through slightly touching your bunghole and forcing you to wash poop from under your fingernails
Dude wash your fucking hands i can tell you've been getting the back door gopher.
by BarryHalls March 20, 2011
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During sexual activity. A term relating to taking a lady up the back passage.
Kick the back door in:
'Have you kicked michelle's back door in yet?'

'Things got a little frisky las night and i ended up kicking her back door in!'
by Beans57 November 07, 2006
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The term given to those who venture into the anus of an unexpecting member of the public.
I was chased by a Back door breacher through the alley way last night. OUCH
by Daniel James Solan March 05, 2008
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Back door love can mean two things: anal sex, which "back door" can be your anus. It can also be a lover (male/female) of a married man/woman.
"I'm your back door lover/ creepin' in when the lights go off..." Song lyric from Josie and the Pussycats (movie)
by VintageDetour August 12, 2014
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The back door dumbledore is a famous sexual position form the never released movie in the 'Harry Potter' series.

It essentially consists of a wizards hat, a broomstick and the anus.
1. "Ron! Ron! Get the bandages! I just got back door dumbledore'd by Hagrid! I never understood why Mrs Moganagle made the curfew for first year students! Hagrid has a taste for pre-pubescant boys! Ouch!!"

2. "Arghh, it burns. I never realised Tobasco Sauce could be used as lube!"

3. "Harry Potter, would you stay behind after class. I need to have a little word with you." 😈
by Gary the goat October 16, 2014
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Preferably on xmas eve, whilst having sexual intercourse doggy style with your girl friend, just as your about to climax you sneakily slip it into her ass. When she turns round in shock and horror you pull out and ejaculate all over her face shouting 'Ho,ho, ho' leaving her rosy cheeked with a white beard just like Santa Claus.
Jim: "I pulled Jess at the office xmas party last night; when we got back to my apartment I gave her a Back door Santa as an early xmas present"

Peter: "Sweet"
by Studley Ramrod September 06, 2012
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Discribes a person who has a severe dose of the shits.
Usually after a skinfull of beer and a dodgy curry, the unlucky person will wake up with an arse like the Japanese flag. Just a white patch with a big red dot.
Fuck me Reg, I think i've got the back door trots, I have been shitting like a pony all morning, and my arse is now on fucking fire.
by Britannic May 25, 2009
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