A Little Spelling Lesson

Two Indian doctors were having a discussion:

"I tell you it is spelt W-O-O-M."

"NO, it's definitely spelt W-H-O-O-M."

An old lady passing by remarked, "Gentlemen, I'm afraid that you're both wrong. It's actually spelled W-O-M-B."

One doctor turns to the other and declares, "I bet she's never even SEEN a hippotamus let alone heard one fart underwater!"