(verb)(noun) topaco is a sound you hear at night, possibley when your sleeping. if you hear topaco dont be frightened, its probaley in your imagination.
Emily: what are you talking about?
Denver: That noise!
Demi: how did it go?
(demi on the verge of craping herself, thats how scared she was)
Katelynn: HAHAHAHAH, thats funny.
(demi didnt crap herself in the end)