Koo, I believe, is named after: https://en.wikipedia.org/wiki/Cuckoo#Calls https://en.wikipedia.org/wiki/Cuckoo#Calls > People had a lot of fun talking about a

Koo, I believe, is named after: https://en.wikipedia.org/wiki/Cuckoo#Calls https://en.wikipedia.org/wiki/Cuckoo#Calls > People had a lot of fun talking about and asking others about their Koos. You just might enjoy the opening sequence of this song: https://www.youtube.com/watch?v=Yek4hrl25qU&t=23 https://www.youtube.com/watch?v=Yek4hrl25qU&t=23