Noun pe-truh-poo Colloquial term for coprolite, which is
stone material consisting of fossilized
feces, aka
dinosaur dung.
John took the
heavy stone to
Susie, saying "Look at this rock! It's shaped like a turd, and smells funny, too." Susie laughed, replying "Of course it does John.. that's a big chunk of petripoo!"