Fish in a Barrel Share definition Flag The act of inserting a penis into the anus and ejaculating immediately after vaginal sex. I was banging Kristen last night and she yelled "FISH IN A BARREL!" so i pulled it out, threw it in her ass and shot my load. Fish in a Barrel by SATEVO September 1, 2013 0 0 Get merch Get the Fish in a Barrel mug. Buy Now — $32.95 See more merch