noun
plural roosts
[count] :a place where birds rest or sleep
rule the roost
informal :to have the most control or authority in a group
verb
roosts; roosted; roosting
[no obj] of a bird :to rest or sleep somewhere
come home to roost
If something from your past comes home to roost or your/the chickens come home to roost, you experience problems that you deserve because they are caused by your past actions or are like the problems you have caused for other people.
US