How do you use a slimjim?

Answer 1

To learn how to do it is really more a matter of learning hands-on. What it does is it fits in the space between the window and the door, and you use it to hook the linkage to the locking mechanism in order to manually move it to an unlock position.

Answer 2

Slim jims are used to unlock a car that you left the keys in. Or criminals use them to steal cars.