Releasing A Brown Trout Edit Meaning

1.

Taking a dump into a large body of water(lake, pond, ocean, etc). Believed to be originated in the waters of Lake Erie. Most commonly over the side of a boat.

Doug: Where did Beef go? I need him to start grilling burgers

Dave: He's on port side, Releasing a Brown Trout. I think he had mudd butt.

See brown trout, dead fish