'Duo mao mao' literally means 'hide-cat-cat' and is the playful, reduplicated Chinese term for the classic children's game hide-and-seek. The verb 躲 (duǒ) means 'to hide' or 'to dodge', while 猫 (māo) means 'cat' — but here it’s used not for the animal itself, but as a rhythmic, child-friendly placeholder, similar to how English uses 'peekaboo' or 'eeny-meeny'. The repetition of 猫 adds cuteness and memorability, making the phrase especially common in preschools, playgrounds, and family playtime.

This term is informal and strongly associated with childhood; adults rarely use it seriously outside nostalgic or affectionate contexts. Though the characters suggest cats, no actual felines are involved — it’s purely idiomatic. In spoken Mandarin, the tone on the second 猫 often lightens to a neutral tone (māo → mao) in rapid speech, reflecting its function as a playful particle rather than a lexical noun.