stanky adjective2 •(slang) smelly; stinkyAs fun as fish are to watch, they require a lot of fish food, and fish food makes fish poop, and pooping fish make for a stanky tank after too long. Just say no to stanky tanks. — 2010 •(slang) Having the quality called stank, i.e. jazzy, funky, good. formsmore stanky · most stanky