"You know, now that you mention it, I think in Fire Pro Wrestling S (and probably D too), Stan Hansen yelled 'Wii!' when he did his jumping lariat.
Maybe when he was in Japan there was some cultural reason Hooo! wouldn't fly so they had him change it to Wii?"
Never heard of that. Virtually every Stan Hansen match I've ever seen has been from Japan and he was yelling "HOOO!" in every one of them.
I'm thinking that maybe Japanese people can't properly imitate the "HOOO!" sound so when a wrestling fan impersonates Hansen they shout "WEEE!" and no one can tell the difference. Thus "WEEE!" is used in Fire Pro.