Mashed Potato Sofa Wig Share definition Flag Term used in the "Frippster" community as a place holder for whatever new band is trendy that week. Wow, did you hear the new jam from "Mashed Potato Sofa Wig", it totally slaps! Mashed Potato Sofa Wig by Mentae April 25, 2020 0 0 Get merch Get the Mashed Potato Sofa Wig mug. Buy Now — $32.95 See more merch