Definition & Meaning of "[rule] the roost"

What is the origin of the idiom "rule the roost" and when to use it?

The origin of the idiom "rule the roost" can be traced back to traditional farming practices and the behavior of roosters in a chicken coop or farmyard. In a typical farm setting, the rooster, also known as a cockerel, serves as the dominant male bird and leader of the flock. The rooster establishes its authority by crowing loudly, displaying territorial behavior, and protecting the hens from potential threats. This behavior symbolizes its control and dominance over the roost or the chicken coop. It is commonly used in situations where someone is clearly in charge and exercises power, dominance, or influence.