I think, being the elitist he is, his nose is stuck so far up in the air that it’s just plain lack of oxygen. Coupled with the fact that nobody has called him on his lies for over 8 long and agonizing years, so he says whatever makes him feel good.
That was FUNNY!! :)
According to his book, his nose was high in the air because he and the rest of the Choom Gang were breathing the ceiling of their van to get every last bit of MJ smoke.