When you and/or a friend think something is funny but everyone else is clueless to what you are laughing about.
Bob: then she said Goorgle!
Joe: lol, thats so chramtastic!
People listening: WTF?
One is thought of lesser than normal people. Believes he is a pro at something but actually is not.
A Larson was walking through the street and realized how much of a scrub he had been through acting up at everyone.