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).
"This fanfiction is shit. Why is Lilly suddenly interested in John? Didn't she try to murder him in the video game? Also, John is supposed to be an asshole but in this story, he acts like the type of person who cries after swatting a fly." Olivia said as she got off of Wattpad and did something productive with her life.
Ashley giggled. "That sounds like a Tumblr fanfiction to me, I stopped going on Wattpad just because of those things."
Noun: Someone whose pictures on social networking sites do not convey their actual appearance.
Kelly: Man, Bob has some cute pictures on Facebook!
Mia: Nah don't bother... total Tumblr Allstar
The act of scrambling a Tumblr post's texts to make humorous or obscure words/phrases. This can range from switching mere text or words around or creating an image of the selected text and altering it to be duplicated, magnified/shrunk, or even putting irrelevant images into the created Tumblr Poop
Wow, I just got Tumblr Pooped!
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This post seems boring... I should Tumblr Poop it!
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Check out this Tumblr Poop. It's hilarious!
A lame poser who tries extremely hard to be tumblr, yet hates on others whom are tumblr because they so desperately wish to be them.
Omg Hunter is such a fucking tumblr hooker smh.
A Tumblr slut is someone who likes to post their nudes or naked videos of themselves on their tumblr feed.
"She's definitely a tumblr slut you can tell by her feed."
A term for the seemingly ubiquitous trend on Tumblr where character’s skin colors tend to be drawn with noticeably different physical characteristics, like being more fat or dark-skinned, than they actually are in canon by Tumblr artists. The reason for this is unknown, but the most common hypothesis is that the artists on Tumblr subconsciously make the characters look more like themselves, such as being overweight, of being the main cause behind this phenomenon. Some of the more famous examples of this trend being franchises that are very popular with Tumblr users like Steven Universe and Harry Potter, due to their character’s being very fast and loose with physical description, making it very easy for Tumblr artists to insert their own ideas of what characters look like, even though Tumblr artists often ignore the very few distinctive physical characteristics given to them in canon.
Alice: Hey Bob, why did this artist make Ronald Weasley really overweight in this fanart, despite him being described as “tall, thin, and gangling” in the book?
Bob: Must be the Tumblr curse.
The predominate mindset among more vocal Tumblr users, where whoever have the most incensed emotions, or whoever has the most “oppressed” attributes (POC, women, etc.) always win every argument, no matter if they are factually right or not. Virtually every Tumblr community engages in some form on this mindset in some way, with Tumblr users especially enjoying to hate on white, cishet, males no matter what their political state is (see: die cis scum, male tears, etc.) Granted, Tumblr logic does not mean Tumblr users are always wrong, this is just a logical fallacy that is often employed by Tumblr users to argue with people who disagree with them, even when said conversation has nothing to do with race, gender, politics, etc. tl;dr: This is an appeal to emotion, appeal to minority, and victim complex that Tumblr engages in at an alarming amount, and due to this repeated fallacious logic, is what gave Tumblr its infamous reputation of “feelings over facts”.
Example of Tumblr logic:
Logical internet user: I dislike your opinion, so I will give out a bunch of (possibly true, this is the internet after all) facts that refute your argument.
Illogical internet user: I dislike your opinion, so here is 13 reasons why you are a sexist, racist, homophobic, transphobic, Islamophobic, (insert other Tumblr buzzword insults), bigoted scum who’s argument is now completely invalidated due to their alleged bigotry, even if they made actual points.
*The illogical user then gets upvoted for appealing to various minority groups, whereas the logical user gets thrown into oblivion by the seething lynch mob of incensed internet users who want someone to fight against.