fucknagle Share definition Flag noun; a clumsy, oafish asshole; originated in Philly, deriving from Mr. Nagle, high school gym teacher. Hey fucknagle, you put the pepper in the salt shaker! fucknagle by swphilly December 18, 2015 0 0 Get merch Get the fucknagle mug. Buy Now — $32.95 See more merch