WordWeb Online

1. Wildly frenzied and out of control
   "the soldier was completely amuck";
   - amok, berserk

1. Wildly; without self-control
   "when the restaurant caught fire the patrons ran amuck, blocking the exit";
   - amok
    
2. In a murderous frenzy
   "rioters running amuck and throwing sticks and bottles and stones";
   - amok, murderously

See also: agitated

Encyclopedia: Amuck