To sneak off home without prior warning. ie. out the backdoor without telling people you're going. used in Whitehaven and surrounding areas.
Jolo- 'where did Richie ga last night Ang?'
Angie D- 'Dunno, he musta done a Backdoor Boogie'
by Jolo/Andrea November 14, 2009
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A porn made in the 80's in which two men try and fit their members inside a female's anus simultaneously.

The one great line from the movie is, "Come'on Barry, I bet we can get both our dicks in her at once."
Barry really stuffed that chick in Backdoor Boogie.
by dfu January 30, 2004
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Refers to sex between two gay males, or anal sex with a female.
"We did the backdoor boogie a couple of times last night."
by Angelic_Sherry September 22, 2005
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