A sexual act in where a man is engaging a woman doggy style next to a flight of stairs and then pushes her down the stairs and rides her the whole way.
Bob:Hey man, what did you do last night?
John:Oh nothing much, i just pulled the Russian Bobsled on Jen.
Bob:Nice, hopefully it didn't bruise her knees too bad.
by Danish_boy7 October 12, 2006

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