Top Definition
Someone who takes it up the back passage (ass), or likes to give it up the ass. One of the two. Originated on 'The Catherine Tate Show'
'How dare you accuse me of being a back door deidre!?'
'Hey yaaaaa! Who are you?
I'm a back door deidre, how about you?'
by EnnitYouf April 16, 2009

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