porcelain beach

The part of the inside of a toilet bowl that does not include the water. It is the part that leads to the water similar to how the beach leads to water in the ocean. The porcelain beach is often the part of the inside of the toilet that gets marked when the kids are dropped off on the shore and not in the water.

I had to use the toilet brush to clean the porcelain beach after a doozie of a deuce.