老公帅帅哒媳妇萌萌哒
[lăo gōng shuài shuài dā xí fù méng méng dā]
This nickname implies a cute and sweet description of a couple. '老公' (lǎo gōng) means 'husband', '帅帅哒' (shuàishuài dá) means 'so handsome', '媳妇' (xí fu) means 'wife', and '萌萌哒' (méng méng dá) means 'so lovely'. The person might be using this to express how much they appreciate the beauty and sweetness of their marriage life.