国名女婿国民媳妇
[guó míng nǚ xù guó mín xí fù]
In traditional Chinese culture, this term refers affectionately to people who marry into another country's national family and are beloved. It’s often used humorously or playfully to indicate that one is accepted and loved as part of a national identity. Literally 'national son-in-law and daughter-in-law.'