Piston

//ˈpɪstən// name, noun, verb

Definitions

Proper Noun
  1. 1
    A surname.
Noun
  1. 1
    A solid disk or cylinder that fits inside a hollow cylinder, and moves under pressure (as in an engine) or displaces fluid (as in a pump)
  2. 2
    mechanical device that has a plunging or thrusting motion wordnet
  3. 3
    A valve device in some brass instruments for changing the pitch
Verb
  1. 1
    To move up and down or in and out like a piston. intransitive

    "The Latino warrior fucked like a man possessed. His lean hips powered the pistoning rod in short, vicious jabs, so rapidly that the shit-streaked cock was a blur as it pounded Captain Randall's butthole, churning the screaming soldier's ass-juices, rectal blood, and smashed turds into a slimy froth."

Etymology

Etymology 1

From French piston.

Etymology 2

From French piston.

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