The usage of "autism" and "faggot" as insults on 4chan. They aren't insulting autistic people or homosexuals, the two words have simply become generic insults within the community, which can be greatly confusing for newcomers.
/v/-Video Games. A perfect example of Artifact Title, barely any of the posts on there are specifically about video games.
In-universe, "Marble Hornets" is the name of the student film project that Alex Kralie came up with that got interrupted after Alex's run-in with you-know-what. Whether or not the title actually had some significance to the plot of the project is never explained.
The "Cheat Commandos O's" cereal pieces from Homestar Runner are actually not "O"-shaped, but rather nugget-shaped. This was even lampshaded on the box art where Fightgar was actually telling the other Commandos that the cereal pieces "aren't 'O''s!"
In the Strong Bad Email "crazy cartoon," Strong Bad creates a crazy cartoon entitled Sweet Cuppin' Cakes, because, to quote him, "crazy cartoons usually have titles that have nothing to do with the cartoon itself."
The Ugly One has about the same level of attractiveness as the other three girls.
Strong Bad himself isn't particularly strong. Neither is Strong Sad. Strong Mad is, though. The second parts of their names are all accurate, at least.
The main character of Show Within a Show anime 20X6 is named Stinkoman. He's never shown or mentioned to have an odour problem. Being that he's basically one of many Alternate Universe versions of Strong Bad, his name comes from something Homestar randomly called Strong Bad at one point.
The Internet Movie Database (IMDb) also contains information about TV shows, individual episodes and video games.
No Right Answer uses this for some episodes (Best Anime Ever should really be called Pokemon vs Digimon). Used deliberately for publicity.
"Fear Wallpaper", by ardcor. A bright, cheery wallpaper depicting a happy fish.
Little One, one of the four heroes of Tales from My D&D Campaign, is about six and a half feet tall and built to match. Justified by the fact that he was named by his mother, who's a dragon.
Pimp Lando from, well, Pimp Lando, isn't actually a pimp. Also The Evil Guitarist, who isn't all that evil and isn't a guitarist.
In SCP Foundation objects that are designated "Safe" are often still potentially very dangerous; the designation refers more to the level of precaution that needs to be taken to stop the object from using that potential and how well understood the effects of using the object are. For example in the video game SCP - Containment Breach, a skull that instantly kills anyone who touches it is designated as Safe. The reason is as follows: It's effects are well-known and completely explored (you touch, you die), how to prevent the effect from occuring is known and understood (don't touch it), and it isn't actively malicious or trying to seek out victims (it won't jump at you if you leave it on a table).
In Welcome to Night Vale, the Weather is always a song. Other news segments such as traffic or financial news may also be a bleak poem or unpleasant story, sometimes with some conceivable relation to traffic or finance, sometimes not, but sometimes they're actual news segments about the topic if something related to them is happening. While even if something unusual is happening with the weather, the Weather segment will still be a song.
The Cyanide & Happiness Show has this with its episode titles, as a Running Gag: each episode's title has absolutely nothing to do with the content of that episode. A good example would be "The Christmas Episode", which contains nothing Christmassy at all and in fact came out a month after Christmas.
Averted with "The Depressing Episode", and with the Season 2 opener, "Too Many Trains"< which does in fact have sketches about trains.
They don't live in trees, for starters, and by the end of each episode, at least one of them is anything but happy.
Handy, the beaver with no hands.
With the exception of Mellotaku, none of the members of Ze Pyromancers actually has the ability to use pyromancy or even fire in any way, instead using other elements, two of which (ironically) are Ice and Water.
LoadingReadyLive has "Rhythm Tuesdays" which happen on various days of the week. It started when both Heather and Ian (who both stream on Tuesday) needed a break from their respective games for a week, so they decided to get Alex (the other Tuesday streamer) in on it and make it an entire day of streaming rhythm games as a one-off thing, which they called "Rhythm Tuesday." Then, several weeks later, Kathleen was a bit tired of her JRPG, so she decided to do on her stream "Rhythm Tuesday: Now on Wednesday!" Then, with Desert Bus For Hope coming up, the streamers decided to do a final day of streaming to make up for the week of preparation they were off. So, one of the streams is "Rhythm Tuesday: Now on Friday!" Going into the future, the crew expects to find Rhythm Tuesday occurring on various days of the week, making it an Artifact Title.
Reddit has several subreddits whose name does not reflect the content. The most well-known is /r/trees, which is a subreddit dedicated to marijuana. If you actually want to talk about trees, go to /r/marijuanaenthusiasts. There are also the so-called "SFW Porn" subreddits, which do not contain any pornography at all: /r/EarthPorn features Scenery Porn, /r/FoodPorn has beautiful pictures of food, etc.