slauncha Share definition Flag Pronunciation of the Gaelic word Sláinte, meaning cheers or "to your health". Popularized by Irish pubs and beers such as Guinness. "Slauncha!" (when raising a pint and celebrating with your friends) slauncha by Alan Dobkin April 10, 2007 0 0 Get merch Get the slauncha mug. Buy Now — $32.95 See more merch