| 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. |
[hahy-uhn-mahy-tee, -uhnd-] 
| haughty; arrogant. |
| high-and-might·y (hī'ən-mī'tē) adj. Marked by arrogance; haughty and overbearing. high and mighty adv. & n. |
high and mighty
Conceited, haughty, as in She was too high and mighty to make her own bed. This expression originally alluded to high-born rulers and was being transferred to the merely arrogant by the mid-1600s.