snap-fu Share definition Flag When you accidentally sent a SnapChat to the wrong person or people in your contact list. Otherwise known as a snapchat fuck up. Dude, Snap-fu! I just sent a picture of my cock to my mom instead of Kendra. snap-fu by ILMDomDude March 14, 2014 0 0 Get merch Get the snap-fu mug. Buy Now — $32.95 See more merch