Some of my personal favorites:
Bender, "These balls are making me testy!"
Zap, "Zap Brannigan. Has my reputation preceded me, or was I to quick for it?"
Zoidberg, "I took the liberty of fertilizing your caviar."
Elzar, "Is everything alright, folks?"
Bender, "Oh, yes, Elzar."
Elzar, "Good, because I forgot to cook that chicken."
Animatronic Singing Whalers, "We're whalers of the moon. We carry a harpoon. But there ain't no whales, so we tell tale tales and sing a whaling tune."