noun

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.

adjective

mad; crazy.

people think you’re cuckoo

verb

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