Used to indicate that one does not want to see, hear, know, or have anything to do with something. Used for comic effect.

Originates from an alleged, bad English-to-Chinese-to-English translation of Star Wars Episode III. In the end, Darth Vader's infamous "NOOOOOOOOOOOOOOOOOOO!" is subtitled "DO NOT WANT!"

This is the phrase originally intended for Darth Vader to shout at the end of Star Wars Episode III: Revenge of the Sith. However, shortly before the film's release Lucas decided that a snappier, more effective phrase could be used, such as "NO!"