A usuallyAustralian term where person that gets something from someone and doesn't pay back and gets away with it.
Kid 1: Hey I'm going to the servo for a monster wanna come with?
Scabber: Yeah I don't have money though can u get me one?
Kid 1: Yeah sure but you'll pay me back right?
Scabber:... yeah...sure
A: Erm, No i cannot come with you, im off with a girl somewere....
B: Omg, you scabber you could oflet me know C: Damn! "B" you just got scabbed off! Be Atch!