high-and-mighty

high-and-mighty  {adj.},  {informal}
Feeling more important or superior to someone else; too proud of yourself.
John wasn't invited to the party, because he acted too high-and-mighty.
Mary become high-and-mighty when she won the prize, and Joan would not go around with her any more.
Compare: STUCK-UP.
Categories: feelings {adj.} {informal}