Stinger?

[darthvedder81]

Again, for a movie that you people claim to be unwatchable and unendurable you seem to remember a lot of very specific moments and lines?even phonetically quoting whole passages of Huttese!

[LadyKenobi]

and he says something like "This is terrible!" Mike or Kevin noted that it's a perfect review of the whole film.

I think you mean the part in which he said, "This is tense!"  Meaning, I suppose, "This is a completely new word and in no way an attempt to create a catchphrase!" 

[Sharktopus]

I'm with Sampo. Obi-Wan's "I have a bad feeling about this" nails it. I know that, like a Hitchcock cameo, Lucas wanted to get the catchphrase out of the way early, but it's an amazingly fourth wall breaking line.

[JonnyFrag]

He isn to be....PUINISHED!

[Rattrap007]

I'd have to go with "Yipee!!" or when they try to sneak on the ship and the robot guard says "Oh yeah, your under arrest." or something like that.

[ChrisHanel]

My stinger is "Steady.... Steady!"

[Raven]

Qui-gon grabbing Jar Jar's tongue. 

[Johnny Unusual]

In my opinion, the best stingers are the ones where you're like "what was that all about."  So I nominate that weird smile that Qui-Gon and Obi Wan give when Anakin introduces himself to Obi Wan.  Was there something funny about that.

Also, there are many Jake Lloyd moments when he's trying to be serious that would work.

[Scorpy]

Any time Boss Nass shook his face.