From Longman Dictionary of Contemporary Englishrule the roostrule the roostinformalPOWER to be the most powerful person in a group His wife rules the roost in their house. → rule
Examples from the Corpus
rule the roost• Alongside the State, they continued to rule the roost.• But it was those two who ruled the roost.• Effective discipline is neither harsh nor does it allow the child to rule the roost.• I kind of ruled the roost a bit, but we got on well.• Amanda pretty much rules the roost in that house.• But Mr Norman rules the roost in the film field with a regular 4 million audience, twice the weekly cinema audience.• Political expediency, political vengeance still rule the roost, not only in waterfowl jobs but throughout the establishment.• The late 1960s and early 1970s saw Lee Trevino ruling the roost on both sides of the Pond.• The mid-fielders ruled the roost up to the interval, but after a scoreless first half the Antrim team showed great dominance. 