Chinese edit

piston to exercise; to move about; to get things done by pulling strings
trad. (活塞運動) 活塞 運動
simp. (活塞运动) 活塞 运动

Pronunciation edit


Noun edit

活塞運動

  1. (physics) piston motion
  2. (figurative, slang) sexual intercourse or (male) masturbation