A derogatory expression indicating disgust with an individual or group of same. An expression of bravado. A colloquialism from the iron mining village of Republic in Michigan's Upper Penninsula. Most typically followed by the somewhat nonsensical term, "or feed 'em fish," for emphasis.
"So what if we're smokin' dope on the front steps of the cop shop, I say fuck 'em or feed 'em fish."