lan tiu Share definition Flag A combination of 'lan' and 'tiu'. Literally, it means penis fuck. Jack couldn't score a strike while bowling. He turned to Sanagi and shouted "LAN TIU", to which Sanagi smiled back at him. lan tiu by The Black Jack September 30, 2007 0 0 Get merch Get the lan tiu mug. Buy Now — $32.95 See more merch
