Yet another way of saying, "I don't fucking think so" or "no fucking way, Jose".
"Stupid-ass Kevin said that it would help if I rubbed mayonaise on my chest. Man, fuck that noise."
1. (n) One who derives sexual gratifaction or excitement from being pooped upon or eating poop or any number of unsatisfactory activities involving poo.
"If you're ever over at John's house, don't use ANY dishes or glasses or anything like that. I hear he is a big-time scat freak."