Tidus: She said something about going to Macarena Temple.
Wakka: Macalania.
Tidus: Aye! (in a super-high pitched voice that actually HURTS.)

Also, after he's told about Yuna's heritage and is specifically instructed NOT to tell Wakka - what's the first thing he says?

"I gotta tell Wakka!"

I hate Tidus. So much.