CRANK

turn the crankshaft of (an internal combustion engine) in order to start the engine

give a bend to (a shaft, bar, etc.)

inject a narcotic drug

a part of an axle or shaft bent out at right angles, for converting reciprocal to circular motion and vice versa

the drug methamphetamine.

an eccentric person, especially one who is obsessed by a particular subject

a fanciful turn of speech.

(of a sailing ship) liable to heel over.