the long hair or fur on the back of the canine thigh that creates a
curtain-like effect while the mammal arches its back and drops a
deuce.
said fur hides the excrement that protrudes from the canine's bung
Watch out
Stephen, the wind is blowing. You don't want to
get poo on your poop curtain.
Daisy is so ladylike that she's always sure to use her poop curtains when dropping the
deuce.