User blog comment:BrianBerta/Jeff the Killer Ripoff Contest/@comment-26268104-20151220221622/@comment-24466828-20151220222529

It's a way of saying that the story is so bad that it's good. For example, it could be funny because it pokes fun at the original story's flaws, it could be funny by featuring overused cliches which make me laugh or cringe, it could be funny by over-exaggerating certain aspects of it, it could have the killers motives for going insane seem very unrealistic and stupid, and so many more things you can think of.

If you're interested, I wrote 2 Jeff ripoffs on my wiki and you can read them here if you want an idea of what to make your pasta sound like: That Was Easy and Gregory the Killer.