A form of absurdist/dadaist/postmodern literature which indulges in or celebrates "randomness", often characterised by non-sequiturs and impromptuesque or improvisational style. Often, wtfist literature, in Postmodern tradition, reappropriates older sources. A classic example of wtfism is a Neil Cicierega animutation or an episode from the televised Monty Python.
omg - Oh my god bs - Bull shit
hax (h4x) - to hack into something, or to be able to do something that someone cannot understand.
you are playing your fav multiplayer shoot-em-up, you've just gone around a corner, and then your friend blows the fuck out of your head without you even seing him. You would then shout "What the fuck bull shit hax!"