Wtf Share definition Flag The reaction you get when you publish 3 things to Urban Dictionary, but none of them get published. (Stands for What The Fuck) Yoo WTF it is a flying spider!WTF she just gave him the L! Wtf by Electronicsandthat December 10, 2016 0 0 Get merch Get the Wtf mug. Buy Now — $32.95 See more merch