Plaxicate Share definition Flag to do something so dangerously stupid in public where one causes harm to oneself. That kid riding his skateboard on the guard rails fell on his head. He really plaxicated himself in front of all those onlookers. Plaxicate by boggler December 18, 2008 0 0 Get merch Get the Plaxicate mug. Buy Now — $32.95 See more merch