Who said "This is the dumbest thing I've ever heard"?

This quote is attributed to Kyle Broflovski.

This is the dumbest thing I've ever heard - Kyle Broflovski

"This is the dumbest thing I've ever heard"

Kyle Broflovski Humor

"Dude, this is so messed up!"

"I'm not a jew, I'm a person!"

"Guys, we need to think about this logically"

"You guys are being totally unreasonable"

"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."