The act of putting someone else down or insulting them to boost one's Ego. It is most commonly done through pointing out the other person's mistakes, especially in spelling and grammar. This form is somewhat rare in real life, but very, very common on the internet.
- ... I found the movie hilarious, but your going to have to see it yourself.
It's "you're," n00b, now go kill yourself!
-Stop masturbating your ego, fucking Grammar Nazi.