fapple Share definition Flag Verb. To fapple. Fappling. To tap ones foot in a moment of humour. Replaces, or combines with, laughter. Charlotte malkeed Seonaid, and we all fappled. fapple by Damres November 6, 2005 0 0 Get merch Get the fapple mug. Buy Now — $32.95 See more merch