A. To pass wind
B. When a fart smells so bad that one might has well have shat.
C. The smell of a shit in fart form.
D. a shit burp smells as though the shit in you ass opened up its mouth and burped.
Woman "Your fart fucking reaks!"
Man "So do yours..."
Woman "Yeah, but mine don't linger like your stinky shit burps!"