piston pump


slang referring to an aggressive, furious, rapid act of f-ll-t–. the piston pump receives its name from the rapid head movement exhibited by the provider of the f-ll-t–, which is said to resemble the action of a moving piston. this is also referred to as the jackhammer. the piston pump is much sought after in the world of f-ll-t– and should be received with grace and humility.
man, that piston pump was great. i have never been sucked off so furiously.

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