smoking a turd in purgatory 

An admonition given to an individual who engages in socially unacceptable behavior, especially at the expense of another.

"I told Jimmy that if he didn't apologize to that nun for asking if it was her breath or her pussy that smelled terrible, he would be smoking a turd in purgatory."

smoking a turd in purgatory by Politically Incorrect Schmuck June 14, 2006