Predder Share definition Flag A 'predder' is one who 'preds' something. To pred is to predict anothers predictions. Timboy entered the game as an amateur predder soon predded Lawro's 2-0 Chelsea wins without thinking. Predder by Phil Harris January 16, 2009 0 0 Get merch Get the Predder mug. Buy Now — $32.95 See more merch