The Russian Chimney Sweep is the act of the female taking a dump, while her partner is performing anal sex. It is called the Russian Chimney Sweep, because it's origin is in Russia, and the asswhole is being cleaned out, like a chimney.
Chick: I gotta take a dump.
Guy: I want to have anal sex.
Chick: Want to do the RussianChimney Sweep? My chimney needs some sweeping.
Guy: Let's get cleaning.
This occurs when one man or woman, homosexual or just plain curious, coats his or her fist with vodka flavored lube and forcefully inserts it into the recipient's Five Hole.