(not offensive to anyone whose actual profession is or was a chimney-sweep):
a) a very offensive term used by white people to insult other white people who are not only pro-miscegenation but are, regardless of actual truth, perceived to have a non-white significant other.
b) a so-so offensive term for a grease-monkey or a janitor
c) a very offensive term used by white middle class intellectuals to insult members of the white urban working class who hang out exclusively with black members of the urban working class and who become more 'black' than 'white' in terms of 'manners', music taste, etc.
if you are called a chimney-sweep, especially definitions a) and c) above you are not only pro-miscegenation, and don't really care about interracial marriages and stuff, but you have no clue what the term ehre weiBen kultur means.
occurs between two people.
First: person A stretches out person B's anal canal by inserting the middle finger, index finger, and thumb into the bum- and spreads the fingers.
Once anal hole is stretched:
person A inserts the head of a mop- preferably new- part with threadsinto person B's bowels, jiggles mop in order to clean person B's colon.
And that, my dear friends, is the ULTIMATE chimney sweep.
person B: I enjoyed that Ultimate Chimney Sweep you gave me the other night. It cleaned me right out!
person A: No problem, I'm glad I could help with your constipation.
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 Russian Chimney Sweep? My chimney needs some sweeping.
Guy: Let's get cleaning.