crank
US /kræŋk/
UK /kræŋk/

1.
manivela, cigüeñal
a device for transmitting rotary motion, consisting of a part, typically a handle, joined perpendicularly to a rotating shaft by a bend in the shaft or a disc fixed to it
:
•
He turned the crank to raise the window.
Giró la manivela para subir la ventana.
•
The old car had a hand crank for starting.
El coche viejo tenía una manivela para arrancar.
2.
excénctrico, chiflado, maniático
an eccentric or ill-tempered person
:
•
My neighbor is a bit of a crank, always complaining about something.
Mi vecino es un poco excéntrico, siempre quejándose de algo.
•
He's a conspiracy theory crank.
Es un chiflado de las teorías de conspiración.