孩儿他爹孩儿他娘
[hái ér tā diē hái ér tā niáng]
'孩儿他爹孩儿他娘' directly converts to English as 'Child's father and child's mother', usually said with a humorous touch by Chinese parents to address themselves or describe family relationship in a playful way, equivalent to saying dad and mom in a cute or casual context