Fauxday Share definition Flag Pronounced FOday. Combination of Faux Friday. The Thursday before a Friday that you have off from work or school that feels like Friday to you. I'm psyched to have off from work tomorrow. Happy Fauxday! Fauxday by mftmark October 4, 2016 0 0 Get merch Get the Fauxday mug. Buy Now — $32.95 See more merch