Foed Up Share definition Flag A word to sream out when your totally intoxicated meaning that your fucked up. "IM FOED UP!"Zak - "dude look at shitty over there."Austin - "he's foed up!." Foed Up by AuhhhRich February 27, 2010 0 0 Get merch Get the Foed Up mug. Buy Now — $32.95 See more merch