Define Riding The Porcelain Bus Meaning

Riding The Porcelain Bus

Damn I drank a whole case last night and now I'm riding the porcelain bus.
By Lorilyn
Riding The Porcelain Bus
taking a fatty crap; the porcelain bus is another word for toilet, while riding it involves sitting on it &, well, pooping.

he's busy riding the porcelain bus... he won't be back for a while.
By Nollie