How far you need to be in a book, series, etc. before you can safely and seriously start reading fanfiction.

The defeat and sadness that you feel after finishing a long, well-written fanfiction, usually on Wattpad or Ao3.

Fanficiton lips are the perfect shaped lips of Jensen Ackles.

A ship fanfiction that twists the character's personalities and/or the source material's plot so much to the point where it's a completely different story just trying to make your "uwu senpai" ship into a thing. A few changes to a fanfiction's story to put it apart from the original wouldn't make it a Tumblr Fanfiction, it's only if it has so many changes that they could literally replace the main characters of it with their own designs and most people wouldn't know that it's based on an existing piece of media. These types of fanfictions are everywhere, trust me, I used to write this type of trash.

Despite the term's name, this isn't just used for actual Tumblr fanfictions. This term is for fanfictions that fit that definition in general. It's named this way because Tumblr fanfictions are stereotyped to be cheesy and bad (they usually are haha).

the Lemon fanfiction is a Frerard fanfiction that involves Gerard Way getting an entire lemon shoved up his asshole by Frank Iero

Fanfiction Green is the most common eye color in anime (and other) fan fictions. People think that it will not be considered mary sue because they are not blue, but they are always wrong.

The Successor to Godawful Fanfiction