4rd Share definition Flag Term used when a douchebag gets 4th and 3rd mixed up Jacob: God dangit this is the 4rd time ive lost connection while looking at porn todaySam: ROFL U CANT SPELL 4th!!!! 4rd by Unfitman March 26, 2010 0 0 Get merch Get the 4rd mug. Buy Now — $32.95 See more merch