moore Share definition Flag to screw up, fuck up, call of, or by any other means call off a cool thing. dude, we were gonna go to mexico and be wasted 24/7 & score with some mexican hookers.. but jon moore'd it up.. moore by jeexlabs.com August 23, 2003 0 0 Get merch Get the moore mug. Buy Now — $32.95 See more merch