A fat obnoxious old peice of shit. Usually gets beaten on and ocasionally gets the shit kicked out of him by little kids. Term used for beating someone up.
Clever, albeit overused (in some circles) retort to anyone attempting to pour haterade on the parade of one Mr. David Hasselhoff.
Schmo: David Hasselhoff is gay/lame/can't sing or act, etc etc
Clever Retort: Hey, don't hassel the hoff! His legend just keeps growing. "Only in America" could such a person find such success. So don't hassel the hoff, baby...