(noun) AKA flashy-thing. A fictional gadget from Men in Black that allows one to erase another's short term memory and replace it with spoken words similar to post-hypnotic suggestions.
Kay: All right, Beatrice, there was no alien. The flash of light you saw in the sky was not a UFO. Swamp gas from a weather balloon was trapped in a thermal pocket and reflected the light from Venus.
Jay: Wait a minute. You just flash that thing, it erases her memory, and you just make up a new one?
Kay: A standard issue neuralyzer.
Jay: And that weak-ass story's the best you can come up with?
Someone who's entire beliefs in life is neutral. They play devil's advocate on every topic. This normally leads to their main belief being that the world is going to explode in 1.7 billion years so none of this matters anyway.
David: I hate how Thomas is such a Neutralist.
Conner: I know, I try to talk aboutpolitics, and then he brings up the sun.