fishclosure Share definition Flag Sealing a large fish in the wall of a house about to be surrendered to the bank. "Hey, that coho fit nicely between the studs. While the paint dries why don't you come by and celebrate my fishclosure" fishclosure by cisco djidd September 30, 2009 0 0 Get merch Get the fishclosure mug. Buy Now — $32.95 See more merch