Whoever's On First

Dad: Dr. Klein diagnosed my high blood pressure and referred me to doctor whoever.

Mom: If it weren't for Dr. Klein he never would have seen doctor whoever.

Me: Doctor whoever? Who's that?

Mom: A cardiologist.

Me: I know, but don't you know his name?

Dad: Dr. whoever.

Mom: Fooever.

Me: His name is Dr. Fooever?

Dad: Fuuulweber.