Who said "Death sucks, but at least it's consistent in my case."?

This quote is attributed to Kenny McCormick.

Death sucks, but at least it's consistent in my case. - Kenny McCormick

"Death sucks, but at least it's consistent in my case."

Kenny McCormick Death

"Mmph mmph mrmph!"

"I'm not fat, I'm just big boned"

"Dude, we're in third grade"

"This is so cool"

"Death doesn't scare me anymore."

"Death and I are old friends."

"Welcome to my world."

"Death is just the beginning."