A double fisting that incorporates both anal and vaginal penetration. Fists are then pumped in and out in manner similar to that of pistons in a engine.
by josh1234 January 4, 2006
Get the Piston Fisting mug.A band whom many belive created or started punk, though they did not, they did help define the genre. By the way, Iggy pop and the stooges didn't start punk, that would be the Mc5.
by EHFAR December 7, 2003
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by Abraham Gutierrez September 25, 2006
Get the pisto mug.A great punk band. Had a lot of good songs, but had ill tempered members(sorry Jonny and Sid). And they had one hell of a good guitarist.
by punkfroggie14 May 27, 2003
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Get the pistory mug.Double penetration sex, with one man fucking the girl in her vagina in and the other in the ass. They alternate thrusts to create a piston action, much like that of an engine.
by Color Rot January 6, 2009
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