Me: After more research I've determined the "Yoooo" in Kabuki and Noh is called Kakegoe and is considered a melodramatic method, often used to mark the entrance of the protagonist. See https://en.wikipedia.org/wiki/Kakegoe , https://youtu.be/VKMw2it8dQY
Me: A modern interpretation of Kakegoe would be the "YEAAAAAHHHHH!" in CSI: Miami
@OldManSteiner:
( •_•)
( •_•)>⌐■-■
(⌐■_■)
*yuuuuuuuuuuuuuu-BOONK*