Douche-a-litus Share definition Flag A contageous disease, often caught by fellow friends, resulting in 'douche' symptoms. 'OMG WTFBBQ?! I just caught douche-a-litus from that douche over there.' Douche-a-litus by TandC May 5, 2009 0 0 Get merch Get the Douche-a-litus mug. Buy Now — $32.95 See more merch