I think you are overreacting a bit. I've never heard this iteration of the woo at a baseball game, but I've heard woo girls do it a billion times. It's not that annoying.
Drunk people yell all sorts of stuff at baseball games. When I came to town in 2010, some big drunk guy kept yelling "Hey Gomes, let's rock and roll!" in the left field seats. That guy drank like a million beers that night.*
* - May have been me.