noun
plural coops
[count] :a cage or small building in which chickens or other small animals are kept
fly the coop
verb
coops; cooped; cooping
coop up
[phrasal verb]
coop up (someone or something) or coop (someone or something) up :to keep (a person or animal) inside a building or in a small space especially for a long period of time - usually used as (be) cooped up
US