What does "三小" mean?

源自闽南语「啥小」的谐音写法，台湾网络用语，意为「什么东西、搞什么鬼」，常带轻蔑或不满语气。典型搭配「看三小」相当于「看什么看」，表挑衅或嫌弃；「是三小」则用于质问对方到底在搞什么。

ENA Taiwanese internet slang from Hokkien "sann-sió", meaning "what the hell" or "what's going on". "看三小" (looking at sann-sió) is a challenge meaning "what are you looking at".