Where does the meaning or make up of the word jacking off come from?

[onesteptwostep]

Like I know it means masturbating, but jacking off? Like trying to jack a switch to go to sleep? In Korean the word had a different eyptomological root so I was wondering where the US one comes from.

Help me, dark side of the internet? Lol

 

[Cognisant]

Jack as a verb means to go up and, for example "he jacked the pump handle" also the nursery rhymes "Jack and Jill" and "Jack and the beanstalk" both pertain to Jack going up and down something.

 

[onesteptwostep]

-delete-

 

[onesteptwostep]

Jack as a verb means to go up and, for example "he jacked the pump handle" also the nursery rhymes "Jack and Jill" and "Jack and the beanstalk" both pertain to Jack going up and down something.

Hmm... lol