When a male or female takes an unusally large dump which looks like a sub-marine, then freezing it, and later using it as a dildo on their partner, to let it melt slowly inside of them :(
Well my sick ass friend told me that he was going to use the Russian Pipeline one day, then cracked up laughing because it was the sickest thing ever!
by Uwanablikeme May 24, 2006
Get the Russian Pipelinemug. by soviet sam June 21, 2014
Get the Russian-Pipelinemug.