ON THE WARPATH

{adj. phr.}, {informal} 1. Very angry. * /When Mother saw the mess in the kitchen she went on the warpath./ * /Betty has been on the warpath ever since she found out she was not invited to the party./ 2. Making an attack; fighting. * /The government is on the warpath against narcotics./ * /The police are on the warpath against speeders./