off the hook

hook definition

1. tv.
   to cheat someone. : Watch the clerk in that store. He might try to hook you.
2. tv.
   to steal something. : Lefty hooked a couple of candy bars just for the hell of it.
3. tv.
   to addict someone (to something). (Not necessarily drugs.) : The constant use of bicarb hooked him to the stuff.
4. n.
   the grade of C. : I didn't study at all and I still got a hook!
5. tv.
   to earn or pull the grade of C on something in school. : History? I hooked it without any trouble.