A person who is a jerk, but more than a jerk. Basically a dick, but they are also a jerk, so Jerk off kinda encompasses being a jerk and a dick, since your jerk off a dick.
P1) Hey did you see that guy trip his ex girl near the sprinklers?
P2) Yeah! He's such a Jerk off!! Why'd she ever go out with him.
P1) Girl, I asked her that and she said "DICK TO BAWM!"