What is Crank ?
Crank is (noun) 1. a metal arm with a right angle, often mounted on a shaft You’ll need a crank to start the engine. 2. a very strange person She’s a bit of a crank when it comes to food, because there are so many things she won’t eat.(verb) to start an engine by turning it with a handle Thank goodness I don’t have to crank the car every time I use it.
source: Easier English, Student Dictionary Upper Intermediate Level