Hwntw Share definition Flag A word to describe a person from South Wales who has a boat on the sea, hence the famous Welsh song 'Mae cwch Aled Hwntw ar y mor' Aled Hwntw, Gutlun jibber Hwntw by CymydogSouthRoad February 15, 2012 0 0 Get merch Get the Hwntw mug. Buy Now — $32.95 See more merch