Jossed does not refer to making characters happy, then hitting them with all manner of unpleasantness, romantic discord, and killing off beloved characters, although at this point I have to wonder why it doesn't.
A Killer App is not a database of famous murderers, no matter what Wally might tell you. Also, although many of the most well-known killer apps may involve the taking of life, the presence of such is not a prerequisite to the title. It isn't a program for the iPhone that finds you an assassin for hire, either.
Kudzu Plot doesn't actually have anything to do with Kudzu. Nor is it necessarily a story with the kudzu plant as a focus, nor is it a field of land used specifically to grow kudzu plants. (Not a good idea.)
Kung-Foley is not Mick Foley's seldom-seen martial-arts-master persona... but wouldn't it be cool if it was?
They are also not combustible, despite how much we sometimes wish they were.
Lemony Narrator is not about Narrators of Lemons, or the dude who sings "The Ultimate Showdown of Ultimate Destiny". It also isn't about a narrator who has just bathed in Lemon Pledge. It is not specifically about a work narrated by Tina Fey either.