- In a frenzy to do violence or kill: rioters running amuck in the streets.
- In or into a jumbled or confused state: The plans went amuck.
- In or into an uncontrolled state or a state of extreme activity: “This jam-packed area of Honolulu has come to stand for tourist development run amok” (Ila Stanger).
Crazed with murderous frenzy: amuck troops.
Origin of amuckMalay amok.