dumpster frumster Share definition Flag A dumpster frumster is someone that you dont like.. and that you want to call trashy.. or a slut.. Nike is a dumpster frumster...THAT I HATE!! dumpster frumster by EmmaLee January 5, 2005 0 0 Get merch Get the dumpster frumster mug. Buy Now — $32.95 See more merch