be/go on the warpath

be on the warpath

slang To be overtly angry and/or looking for retribution. The phrase is potentially offensive, as it references a Native American war practice. I'd avoid the boss if I were you—he's on the warpath and screaming at everyone he sees.

See also: on, warpath

be/go on the ˈwarpath

(informal) be angry and ready for an argument or a fight about something: Look out — the boss is on the warpath again!In the past, if Native Americans were on the warpath, they were going to war or preparing to attack somebody.

See also: on, warpath