cuckooing noun2 •The call of a cuckoo.[…] the mistaken idea that wagtails and hedge-warblers feed the young cuckoos they bring up, long after they leave the nest, whenever they hear their cuckooing, […] — 1882 •(UK) A form of crime in which the home of a vulnerable person is taken over by a criminal gang and used as a base for their activities.The specified criminal activity includes the types of criminal activity that cuckooing is typically used to facilitate, for example, drugs offences, sexual offences and offensive weapons offences. — 2025 formscuckooings