"Besides... If you say you saw Spinel no one will believe you."
- Abraxas (Hrodvitnon): Besides Ghidorah's heads being known for pulling this expression every once in a while, a couple other characters also pull off this expression. After his Sanity Slippage, Alan Jonah at one point gives Monster X a "rictus grimace of a smile". As for the two-headed Monster X, Vivienne's head gives MaNi/Elder Brother a dangerous Slasher Smile during her Heroic Resolve.
- Hetalia: Axis Powers fanfic Gankona, Unnachgiebig, UnitÃ
: The homophobe gave Italy a really scary one. The Bad Touch Trio gave some as well to showcase their pervertedness. - Child of the Storm has Doctor Strange pull one in the sequel when bearing down on his personal arch-nemesis, Sinister, who he's dedicated a very long time to tracking down and making suffer, combined with a Looming Silhouette of Rage and a purred peach of a Pre-Asskicking One-Liner.Hello, Nathaniel. Long time no see.
- In the Jackie Chan Adventures fic Queen of All Oni, Jade gives one to her Jerkass former classmate Drew.
- Let's Do The Caramelldansen plays it for laughs (presumably):"So Vexen smiled, and it was... a purely evil smile. A MANIACLY evil smile. Take every synonym for 'evil', put them before the word 'smile', and you may even get Vexen's smile. It's hard to comprehend how truly terrifying the smile was. But if Hitler and Big Brother had a child, and that child had a child with Satan, and that child had a child with the child of Voldemort and Darth Vader, and that child was to smile, it would probably the closest you could get to how awfully evil Vexen looked at that moment. (Sorry for that image, people) It could make a serial killer cry."
- When the killer Drew is revealed in the Hannah Montana story I Didn't Sign Up For This, the first thing she does is shoot her accomplice with what is described as "a creepy smile" on her face.
- In Frozen Hearts (Sakume), Prince Harken gets one as he's considering whipping his younger brother Hans.
- In Manehattan's Lone Guardian, the deranged Illudere sports one of these after she picks up on one of Salamandra's heartsongs. The narration describes it as an ear-to-ear smile that leaves no doubt that she's never had serious dental work done.
- The vocaloid fanfic Rotting Camellias often has Meiko flashing one of these.
- In The Scaly Raptor, Claire manages to give "shark smiles" even before she becomes a T-rex, usually when she's about to make someone's life hell.
- This Bites!:
- Mr. 5 and Miss Valentine have these on Little Garden when they meet Cross alone.
- Used frequently enough with Kureha that Cross compares her to the Grim Reaper no fewer than three times.
- At the end of Chapter 19, Cross has this reaction after they leave Luffy behind to fight Crocodile...and the rest of the crew agrees to let him give out some spoilers about the upcoming battles.
- Smoker, of all people, gives one in Chapter 23, after Hina becomes convinced that he, Tashigi, and Cross are right about the corruption in the people they follow and asks what he has in mind to fix it.
- Sengoku gets a gold-plated, crazy-ass grin when, amidst all the chaos on Enies Lobby, Spandam idiotically reveals his plan to get control of Pluton and possibly overthrow the Five Elder Stars. The Fleet Admiral takes great pleasure in telling him to report to Marineford to receive "everything he has coming to him".
- The Serial Killer Pinkamina from the My Little Pony: Friendship Is Magic blog Ask Pinkamina Diane Pie is well-known amongst the fandom for her smile. One Ask even involved specifically asking her to smile.
- Outcry: When Nadalia smiles while attempting to harm someone she does so in a way that is described as grotesque, ugly, or wrong.The smile was... wrong. She'd seen many smiles in her life and could remember each with perfect clarity. She'd seen everything, from the genuine to the false, to the insane.This one was... wrong... off. It was as if the thing behind it was merely mimicking what it had seen as if it had forgotten how to even begin to make the expression and was unable to emulate what it had seen enough to overcome what it was trying to hide.
- Samus' default smile in Rise from Darkness seems to be this. Later, after brutally killing an entire family, she breaks into a grin and starts laughing maniacally.
- In Switcheroo AU, Spinel can give a particularly demented face when she tries to intimidate, doing so to scare Holly Blue Agate.
- All Mixed Up!: Mariana Mag is quite fond of these. She gives one at the end of Chapter 4 when she realizes how she can get into Precinct 13579's Headquarters, and gives another one at the end of Chapter 7 just before blowing up her cardboard cutout of Oprah using her anagramming lifeline gadget.
- A Certain Droll Hivemind: This is Abe Eiko's response when it becomes apparent that she and Misaka Yui are going to have to fight a bunch of armed Russian mercenaries. Yui, being an Expendable Clone with No Social Skills, does not understand why her smile is so freaky.We also did not like the way that Abe Eiko was still smiling. She had been smiling since she made her knives. It left me feeling quite uncomfortable, although the Network was not sure why. Smiling is generally viewed by society as a good expression. We would have preferred her to stop smiling.
- In The Saga Of Tanya The Firebender, Tanya does this a lot without realising it. When Zuko first met Tanya, his first thought was that she had the smile of a literal demon.
- From The Fog: One alternate skin Herobrine may sport is their usual look, but with a wide grin encompassing one-fourth of the face.
- In Chapter 3 of Harry's Letter From Hermione's Dad, Harry produces a smile at Snape that makes Muggle-borns think of slasher movies. Those present who are old enough to be familiar with Bellatrix Lestrange think that if she had a son the right age, that kind of expression would be what he'd wear. Snape backs down, even after being deliberately taunted by Harry.
