- noun an unwelcome outsider, tourist or visitor. A Devon dialect term applied contemptuously to summer visitors by local residents since the 1960s. The word has been adopted by the many non-native hippies and travellers living in the West Country to refer to anyone who is not approved of. (The term has also been heard in other parts of Britain.) Grockle is claimed to derive from the name of the famous clown ‘Grock’. In Cornwall the equivalent is emmet.