a long-tailed, medium-sized bird, typically with a grey or brown back and barred or pale underparts. Many cuckoos lay their eggs in the nests of small songbirds

a person who is very irrational or out of touch with reality

(of a person) out of touch with reality; very irrational

people think you're cuckoo

take over (the home of a vulnerable person) in order to establish a base for illegal drug dealing in the area

the frightened woman confided to her support worker that her flat had been cuckooed by a gang selling drugs