UOOOOOOOOOOOOOOOO!Built Upper
Ryo(u) Sakazaki's "Koho(u)" move at the time of Ryuuko no Ken(1)/Art of Fighting(1).
SHORYUKEN!Fuu'un-Ken
"A completely new art of fighting combined boomerang and karate art" ...from Fuu'un Mokushiroku
Why, Ootake!?
Possibly a kind of jargon related to Ootake Kan, a Japanese professional baseball player. See also 2ch's "Anything Jupiter Live" board datalogs (August 14, 2013): [1][2][3]Since then the training has started!
