high and mighty

idiomPart ofhigh

high and mighty — idiom

1. behaving as though you are more important or better than other people, often in

1.idiom
Definition

behaving as though you are more important or better than other people, often in an annoying way

Example

Léa has been acting all high and mighty since she got her new job.

The manager's high and mighty attitude annoyed everyone in the office.