An obscure and appalling sex-act of unknown origins. Believed to involve the stimulation of an anus through various means, with or without the recipient's consent.
Person 1: Hey, did you hear about the Bedroom Dog Killer? He's struck again!
Person 2: Oh Lord... what's he done this time?
Person 1: Gave his own dog a Pink Maxwell then dusted his tracks. Poor thing never stood a chance.
Person 2: Ho-Lee-Fuk! He must have been suffering from dissociative fugue and thought it was his ex-wife!