Im talking cheese stuff here. Anything that made you laugh, whether it be from simply crappy dialogue or genuine comedy.
My personal fav goes something like this
Tidus- So where is this Macarena Temple
Wakka- Macalania
Tidus- AIIIIIII!

Pure genius

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Possible **spoilers**


Seymour, to Auron: "Why are you still here, sir? (...) I beg your pardon. We Guado are keen to the scent of the Farplane."
Tidus: *walks up to Auron and starts sniffing him*
Auron: *pushes Tidus away from him and walks out of the room*

That was so funny~ XD


Or, when Yuna wants to tell the rest of the group something, at the Thunder Plains.
Rikku, a bit panicky: "We're almost there, let's GO!"
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Um here are sum quotes 4m Auron.

Now! This is it! Now is the time to choose! Die and be free of pain or live and fight your sorrow! Now is the time to shape your stories! Your fate is in your hands!

Ah, the spiral of death. Summoners challenge the bringer of death. Sin, and die doing so. Guardians give their lives to protect their summoner. The fayth are the souls of the dead. Even the maesters of Yevon are unsent. Spira is full of death. Only Sin is reborn, and then only to bring more death. It is a cycle of death, spiraling endlessly.

Don't make that face. Being dead has its advantages

"You with a woman? You can't even catch a ball!" -Jecht

"A summoner with bed hair! What's the world comin' to?" -Wakka

"Disappear on us, will ya? Rotten son of a shoopuf!" -Wakka

"No matter how dark the night, morning will always follow." ~ Lulu

Or something along those lines.

I just thought this was funny on an immature level. Not sure if the wording is exact, but:

"We won't try to stop you. We know we'd lose."
- The Guado who stands outside the entrance to the Farplane

There are loads more great lines, funny or no, but that one is just stuck in my head.

I thought it was funny as hell when rikku was on the ship and you go to talk to her and she says something like

its ok when I get mad i just go like this aahhhhhhhhhhh!!!!!!!

and nothing beats the classic line from tidus.

LISTEN TO MY STORY THIS MAY BE OUR LAST CHANCE

i just love all the lines from Auron especially "once Lady Yuna fixes her hair, we leave"