Meaning of high and mighty

high' and might'y

Pronunciation: [key]
  1. in a self-important, grandiose, or arrogant manner: They talk high and mighty, but they owe everyone in town.
  2. persons who are members of or identify with the higher social strata of society, esp. those who are powerful or arrogant.

high-and-might•y

Pronunciation: (hī'un-mī'tē, -und-), [key]
— adj.
  1. haughty; arrogant.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.