Star Fighters. "Poopie suit?!?" And all the Servos doing the choral rendition.

I've always liked when Servo starts to panic when he thinks Manos is going to be a snuff film, and Joel is trying to reassure him :-)

That and the "Move, move!" segment in Space Mutiny.

Oh, and "I'll come over there!” from Mitchell

Final Sacrifice: “It says ‘Do Not Wrinkle’” when Troy pulls out the map

Time Chasers: “Where’s your filth?”

Movie: "There's more than one way to skin a cat."

Servo: "Everybody says that, but no one ever tells me the other way!" S01E12 Moon Zero 2