To Fat Jon something is to place something into your person orally, then, when you extricate the said object, you pick the item out of the feces and place it back in the mouth. Repeat.
Ganxsta: a person who talks shit about someone behind their back and sucks up to them to their face. Also spends all day inside on the computer or playing video games. Also see fag or nub.
That shit headsaid I kicked ass, he was talking to me on the computer, what a nurb.