Definition

A person of mixed Irish and Italian heritage—a playful portmanteau combining the Irish "Mc" prefix with "Guinea" to describe someone's dual cultural background with linguistic flair.

Example Usage

Patrick's mom is Irish and his dad is Italian, so he's definitely a McGuinea.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=McGuinea&defid=5244802)