The act of inserting the sucking tip of a dustbuster into one's anus during intercourse, and then turning it on. The accumulation of fecal matter on the end of the vacuum resembles the front of a rusty car, and the sound of the dustbuster running sounds like a car with a faulty muffler.
Ron: Hey Jeff, I gave Rhonda a Used Mazda last night! She loved it, but an anal bead got caught in the mechanism and destroyed the damn thing.
Jeff: What the hell are you talking about?