siu4 Share definition Flag hong kong internet slang for "笑死", meaning "laughing to death" "siu4" and "笑死" shares the same sound but has different tones me: *sends a meme* friend: siu4 siu4 by mkHR.07 October 17, 2022 0 0 Get merch Get the siu4 mug. Buy Now — $32.95 See more merch