wtp Share definition Flag wtp is kinda like wtf (what the fuck)...but in this case, it means "what the poo." it's a lot nicer and funnier to say than "what the fuck." What the poo is that? wtp by blahblahAMYblah June 16, 2005 0 0 Get merch Get the wtp mug. Buy Now — $32.95 See more merch