Word World Cake Why Do People Use The Word "fail?" ?

Why do people use the word "fail?" ? - word world cake

I showed my friend to World of Warcraft. Hardly ever have played, but it reached lvl 40 in a month.

One day he said: "Hey what's up?"
And she said: "I'm completely noob cake pWnd Wazzup this kind of crisis"
And now, basically, thats how he talks ...
Please do not use the word Internet.
Does anyone else know people that do this?