SMLJ Share definition Flag Acronym for Simi Lanjiao. A hokkien vulgarity. Lanjiao literally means penis in Hokkien. Its commonly used in Asian countries, especially Singapore. SMLJ, that sergeant major made me do extra guard duties for the weekend. SMLJ by HokkienPeng July 10, 2010 0 0 Get merch Get the SMLJ mug. Buy Now — $32.95 See more merch
