ON ONE'S HIGH HORSE

{adj. phr.}, {informal} 1. Acting as if you are better than others; being very proud and scornful. * /Martha was chairman of the picnic committee, and at the picnic she was on her high horse, telling everyone what to do./ * /Mrs. Jones asked to see a less expensive hat. The salesgirl got up on her high horse and said the shop did not sell cheap merchandise./ 2. Refusing to be friendly because you are angry; in a bad temper. * /Joe was on his high horse because he felt Mary wasn't giving him enough attention./ Contrast: OFF ONE'S HIGH HORSE.