Can you give examples of how Percy Jackson might ruin a tight ass fanfic?

Well, it could mean that in the context of Percy Jackson, something about Percy Jackson's character or actions in a fan - created story (fanfic) disrupts or spoils what was otherwise a really good or well - structured fanfic. Maybe his actions go against the flow or theme the fanfic author had in mind.

It could mean that Percy, perhaps a character or a person, is ruining or disrupting a very good or well - constructed fanfic. Maybe Percy has some sort of action or behavior that goes against the plot, characters, or themes of the fanfic, thus 'destroying' it in a sense.

If Percy is a character, he might destroy the fanfic out of jealousy. Maybe the fanfic is getting more attention than he is used to, so he takes actions to undermine it.

There are several types of 'Percy Jackson dumb fanfic'. Some might be the ones that overly simplify the complex world - building of the series. In the original, there are detailed hierarchies among the demigods, different camps with their own rules and cultures. But in some fanfics, all these are ignored and it becomes a mess of random ideas thrown together. Also, fanfics that use the names of the Percy Jackson characters but are actually just some other story with no real connection to the essence of the original series can be considered 'dumb fanfic'.

In some Percy Jackson sick fanfics, the author might take a different approach. Instead of a physical illness, Percy could be affected by a mental or emotional 'sickness'. For example, he could be suffering from a curse that makes him lose his confidence or his sense of self. This would change his character dynamics as he would no longer be the fearless hero we know. His friends would have to find a way to break the curse and bring back the real Percy.

I'm not sure specifically as it's an odd title. It could potentially be about a character named Harry who is making changes or having an impact on a fan - created story related to something described as 'tight ass'. But without more context, it's really hard to say.

There's no way to know for sure who Harry is just from this title. He could be an original character created for the fanfic, or he could be a character borrowed from another work and being used in a new way within this fan - created story.

A 'broken fanfic' could be one where the plot is full of holes. Say, in a Percy Jackson fanfic, the main conflict is introduced but then resolved in a very rushed and unrealistic way. For example, the big bad monster that was supposed to be a huge threat is defeated with just a single, simple spell that wasn't even mentioned before as being that powerful. Or it could be a fanfic that completely messes up the relationships between the characters. Like having Annabeth suddenly hating Percy for no real reason, which goes against the strong bond they had developed throughout the original books.

I haven't come across such a fanfic. Fanfics should generally follow certain ethical and respectful guidelines, and this title seems inappropriate.

It could mean that Harry, whoever he is in this context, takes actions that undermine or break apart the 'fanfic'. Maybe he's a character within the story of the fanfic and does something that goes against the plot or the intended message. The 'tight ass' part is a bit unclear, but it might be a creative or colloquial way of characterizing the fanfic as being too rigid or something similar.