lord it over
Domineer over, act arrogantly toward, as in After Mary was elected president, she tried to lord it over the other girls. [Late 1500s] Also see queen it.
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.