Home › Words › M › merguymerguymerguy means A male merperson.EtymologyFrom mer- + guy.nounA male merperson.e.g.“"I don't know. But he's still breathing, or whatever it is merguys do. We've got to try and revive him somehow," said Sabrina thoughtfully.” — 1999, Ellen Titlebaum, Sabrina Down Under, Archway, →ISBN, page 32:Definitions & examples from Wiktionary (CC BY-SA 3.0).