When I was a kid I thought that Pokemon were saying the name of their attacks when they do them. Obviously not the literal names but the name of the attacks in their own language. Like, Pikachu always says "Piii, Kaaa, CHU!!!" when he does a Thunderbolt and I couldn't imagine what else he's saying while preparing his attack. I guess I get this from other shows when the characters want to do some sort of attack they always say the names of their attacks while they do them.
I guess it would be kind of difficult to do that with attacks like Growl and Bite as it's pretty difficult to talk while growling or biting but still, for other attacks it'd be possible. What do you guys think?