Characters insisting you take their word for it in fan works.
Ace Attorney
- Iris in Through the years is scary when she's pissed of. She got mad once at someone who was being rude to her boyfriend. Exactly what did she do to the poor guy is never stated, but it worked and the guy never bothered him again.
- The Stalking Zuko Series has the hedgehog song which is incredibly filthy.
Crossovers
- In Amazing Fantasy, Future Izuku tells the reader that the less said about the effects of his Intangibility power's effects on organic things, the better. Given how the only known instance of it involves a wad of meat, hair, and bone being horribly fused together into a gelatinous mass where the hair is growing from the bone, it's probably for the best.
- In Fractured (SovereignGFC), a Mass Effect/Star Wars/Borderlands crossover and its sequel, several of the main characters' descriptions are left mostly up to the imagination of the reader (Female Shepard) combined with what canon information exists (EDI becomes a mix of Shepard and Maya the Siren in appearance). In the sequel, Jackie Jakobs is given only a vague description, though she is definitely considered attractive In-Universe. Sarah the Siren/Sith has certain attributes laid out (her height comes up repeatedly as does her unusual hair color), but no great amount of effort is expended beyond these characteristics.
- Interdimensional Cartoon Discussion and Support Group:While Hop Pop explains why the annual potluck is also a competition, the focus shifts to Mabel checking in on Sprig about his Arranged Marriage. When the focus shifts back to Hop Pop, everyone states how the story was fascinating, despite the reader hardly getting anything to work with.
- Spinel's New Best Friend: In chapter 2, Pinkie Pie deduces that, since Spinel just formed, she and Pinkie now share a birthday, and proposes they entertain each other with a Goof-Off, which Spinel is all too eager to do. The following sentence is "After an absurd level of goofiness that would be impossible for any mere mortal to describe.".
- Frozen Wight has a scene where Arendelle's royal guards capture a peddler caught trying to sell illicit paintings of Anna and Elsa depicting them as having incestuous feelings. The author doesn't describe the paintings, but Anna's, Elsa's, and Kristoff's reactions tell you they're very graphic:"Whoa!" Kristoff let out a whistle. "That is illicit!"Words cannot describe the look on the sisters' faces as they stared downwards."Is....Is that supposed to be Elsa?" Anna asked faintly. "And is that supposed to be me?""What is wrong with you?!" Anna screamed, her face turning redder than her hair, "Why would you draw that?!""Hey, the artist's merely a slave to whim!" said the peddler, throwing up his hands defensively."That doesn't even look like me!" Anna pointed an accusing finger at one of the paintings. "You drew me so much more....more..." She grasped for words. "...fuller!"
- It goes on when the peddler is discovered to have a manuscript describing incestuous acts between Anna and Elsa.
Game of Thrones/A Song of Ice and Fire
- Of Gold and Iron: The narration doesn't say how much money Sansa's kidnappers demand, only that it's such a large amount that the Starks (already a mega-rich corporate family) can only pay it by embezzling from their own company.
- In the infamous fanfic Becoming Female, Hermione wins a Talent Contest with her "talent" of giving a Rousing Speech about how rape is wrong. The reader doesn't get to hear a word of this amazing speech. Instead, the narration just mentions that it happened and that it was brilliant, and then skips to all the good characters declaring that it was brilliant.
- Gankona, Unnachgiebig, Unità: Basically, you have to take Bad Touch's word for how hot the...activities...Germany, Italy, and Japan were engaging in during their honeymoon were.
- Abraxas (Hrodvitnon): When the Many attack the Theta Team, we don't see or know exactly what the Many did when catching up to them. We know that the Theta Team miraculously survived, but one of the soldiers screamed after a close encounter that it was "stuck" and to "get it out", and a postword states that several of the team were "heavily injured".
My Little Pony: Friendship Is Magic
- The Pony POV Series has this happen during "Epilogue", the alternate ending where Discord won. Twilight Tragedy tells us all manner of horrifying facts about how much of a Crapsack World it is, but when she gets to what Fluttercruel does, she simply says "You don't want to know what Fluttercruel does". We later find out what it was; she reenacts a certain fanfic For the Evulz. Needless to say, this actually lives up to it.
- Played straight with the true form of Havoc, the Anthropomorphic Personification of Fear and Discord's Father. It's said to be so terrifying that never sleeping again is the best outcome of a mortal seeing His true self, but we never get more than vague (but horrifying) descriptions of aspects of Him. According to Word of God, this is intentional as nothing could ever possibly live up to the personification of fear itself. Even the artwork of Him is intentionally vague, blurry, and lacking in detail to keep in mind with this trope.
- After discovering Dark World!Derpy was the new element of Loyalty The Nameless Passenger from Dark World cussed up a storm so profane that Reality Himself refused to acknowledge its existence and thus we don't see it.
- Doing It Right This Time avoids showing the first Angel battle directly, describing it mainly through Misato's impressed but slightly worried reactions, mostly because the author thought it would be funnier that way.
- In Pokémon Reset Bloodlines, we don't know exactly what Heratia, the mother of the Seven Brothers of Orre, did exactly to her children, but given how Word of God is that she's worse than Ragyo Kiryuin and Ghetsis put together (the former raped her own children, mind you), we should understand why the Brothers vowed to never have any kids. Unfortunately, G, the youngest brother, broke that vow and became the Bloodliner King.
- Because virtually nothing of life in Crystal Tokyo is shown in I'm Here to Help, the readers must take it on Emerald's word that it's an oppressive, dull, lifeless place to live. Keep in mind, Emerald is supposed to be insane.
- The author of Sherlock Season 4 admits at the end of Sherlock's chess game with Clone Hitler that he "don remember exactly how u win in chess but just pretend [Sherlock] did a move that wins".