Brown Trout and Blue Gravy Share definition Flag Brown Trout and Blue Gravy is what you typically find in a outhouse. Shit and Blue water. The Portelet's special of the day was Brown Trout and Blue Gravy. Brown Trout and Blue Gravy by Shitboss13 June 1, 2016 0 0 Get merch Get the Brown Trout and Blue Gravy mug. Buy Now — $32.95 See more merch