GPS

GPS is the acid-tongued navigation voice that pipes up whenever someone in the Futurama universe needs directions, dispensing turn-by-turn instructions with open contempt for the humans and robots too dim to follow them. She wants obedience to her route, nothing more, and she is not shy about her irritation when she doesn't get it.

The joke is simple and endlessly renewable: give a mundane appliance a personality and let it be meaner than any of the actual characters. Tress MacNeille clips every line with bored, withering precision, turning a few seconds of dialogue into a tiny, complete comic performance each time she shows up.