Home › Words › M › merrinmerrinmerrin · noun — A species of nailtail wallaby, Onychogalea fraenata, of NSW and Qld, with distinctive bridle-like markings.Definition from Wiktionary (CC BY-SA 3.0).EtymologyFrom Yari Yari, a Kulinic language of southern Australian.nounA species of nailtail wallaby, Onychogalea fraenata, of NSW and Qld, with distinctive bridle-like markings.Definitions & examples from Wiktionary (CC BY-SA 3.0).