high-hat
Treating others as inferior; acting above others.
It was an expensive place to eat, and the customers were likely to be a little high-hat.
Jones acted high-hat toward anyone poorer than he.
To treat others as inferior; look down on.
After she had married a rich man, Mary high-hatted her former friends.
"Don't high-hat me," Fred warned, when Harry began to walk away as if he didn't know him.