A "used" cloth-and-paper poop-holding device dat smells so bad dat you just wanna "cease to be amongst da living" when ya handle it.
One of da classic AFV montages showed acutely-distressed-with-the-odor fathers having to change their babies' "diepers"; one dude was actually wearing a full-body haz-mat suit.
A Dieper eating rats in your ass.
Marcus: Look i finally got my Rat eating dieper
Mancus: Wow its so cool.