Frightful Yes

The act of saying "yes" to something someone has said to you after you have already stated you didn't hear the first time. You don't want to ask to hear again, so you just hope it isn't a question that will embarrass you by saying "yes" by.

"Yoman yaherbot that milky wrekinall vid?"

"What did you say again?"

"Dijahee shewaa nakee onit"

"Oh yea........"

"You didn't hear what I said, did you."

"Sorry, it was a common frightful yes experience."