Who said "You're killin' me, you know that?"?

This quote is attributed to Estelle Costanza.

You're killin' me, you know that? - Estelle Costanza

"You're killin' me, you know that?"

Estelle Costanza Humor

"I'm telling you, the woman is crazy!"

"Frank, you're scaring me!"

"Why are you always yelling?"

"This is what I'm talking about!"

"Never underestimate the power of a good laugh."

"Laughter is the best medicine."

"A good laugh is the best medicine."

"Laughter is contagious and wonderful."