high horse
Plural
high horses
1
one's arrogant and pretentious behavior that is meant to prove one's superiority over others
- .If she’d get down off her high horse for a moment, she might realize there’s more than one point of view here.
- Don't get on your high horse with me.
- I won't deal with you until you get off your high horse and stop patronizing me.
- It's time you came down off your high horse and admitted you were wrong.
- Larry is on his high horse again, bossing people around.