The naked at school dream

I read the whole book so I raised up my hand.
The whole class starts laughing and I don't understand.
So I walked to the chalkboard, then I knew without a glance.
Because I felt all of their burning eyes
and I wasn't wearing pants.
Some say dreams have meaning.
Well if they do I'd like to ask:
Am I too self-concious of my skinny little ass?
Or is it just some random coincidental thing?
'Cuz everyone I know has had that same disturbing dream.