Define Crank Off Meaning

1-im bored, i feel to just crank off

2-im gonna crank off this fart straight into his hair

3-dont make me crank off this shooter

4-man1:wot u doin 2day?
man2:im just gonna crank off/im just cranked

Holly Martin was cranked off today at work

Dude, you can't trust your girl's birth control. You better just crank off alone in the tub and leave her alone.

I'm so horny! I'm going to "crank one off"later.