piston

(engineering) an engine, a mechanical device

to stir, shake, shift, swing / (as of a machine or device) to operate, run, go, work / (as of a person or group) to work, go into action / (emotionally) to be moved, touched, influenced

(obsolete) to move

to move

engine stall (abbr. エンスト)

a child / (figuratively) a girl, especially a dear or desired one (compare use of English baby, babe) / a smaller or younger version of a bigger object

pump (device for moving liquid or gas)

(idiomatic) have a craving for, have a strong desire for, itch for

to never go back on one's decision no matter what