Webcomics have their share of {{Big Lipped Alligator Moment}}s, too. DadaComics have many more of these per capita, so they won't be listed here.
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* The [[HalloweenEpisode appearances]] of the [[http://bobadventures.comicgenesis.com/d/20081031.html Halloween Monster]] in ''TheInexplicableAdventuresOfBob''.
** Later no longer applies, as it becomes a tradition to use this monster every halloween, making it a running gag instead.
* Heroes Of Lesser Earth, on [[http://www.heroesoflesserearth.com/2006/10/hole_comic_2006-10-27gif this page]], Martin has swapped out his permanent flying ability for Animate Dead. It's played just once for laughs here, and he never uses it again.
* The random death metal comic from ''QuestionableContent'' found [[http://questionablecontent.net/view.php?comic=666 here]], drawn to commemorate the 666th strip.
** Pintsize attempted to [[http://questionablecontent.net/view.php?comic=1337 recreate the magic]] for strip #1337. It didn't work very well.
** Another BLAM occurs in ''QuestionableContent'' when [[http://www.questionablecontent.net/view.php?comic=1135 three characters, two of them female, appear with mustaches.]] This is not explained or referenced on the site, though the creator did later say that it was a reference to the fact that it was published on Cinco De Mayo.
* [[http://www.giantitp.com/comics/oots0091.html The strip]] featuring [[DeliciousFruitPies Fruit Pie the Sorcerer]] in ''Webcomic/TheOrderOfTheStick''.
** WordOfGod is that the idea for this strip came to the author in a fever dream.
** And "[[http://www.giantitp.com/comics/oots0301.html A Brief Intermission]]", a "Let's All Go to the Lobby" parody.
* [[http://www.penny-arcade.com/comic/2000/9/13/ This strip]] early on in ''PennyArcade'' where Tycho is a giant turnip in a sweater. No comment is made about this, and it never happens again.
** In the book collection this strip appears in (''Attack of the Bacon Robots!''), Tycho explains that Gabe threatened to draw him this way until he bought a {{Dreamcast}}.
* "Surprise Ending" indeed: [[http://www.viruscomix.com/page380.html "Je suis de retour!"]]
* Between the end of Chapter 2 and the start of Chapter 3, ''EverydayHeroes'' has a filler of... [[http://www.webcomicsnation.com/eddurd/everydayheroes/series.php?view=single&ID=83742 pictures of mermaids and dragons drawn by the author's grandkids.]]
* ''Webcomic/{{Homestuck}}'':
** During the end of Act 4, [[spoiler: The [[MoodWhiplash complete destruction of two planets]] is interrupted by a [[SuddenVideoGameMoment video game... with singing Squiddles???]] It's explained that they're subconscious manifestation of the [[EldritchAbomination Horrorterrors]] half an act later, offering the protagonists a dream-state separate from the rapidly-Crapsackifying Derse and Prospit, but]] this still doesn't explain the appearance in the End of Act 4 flash.
** Andrew Hussie's AuthorAvatar mourning over the death of a character from ''Hook''. [[LampshadeHanging Which resulted in the largest "THIS IS STUPID" yet.]]
** Some of the earlier flashes have a "Trickster Mode," where pressing certain keys will distort the flash into something else. Effects include giving John a [[Franchise/TheLegendOfZelda Link]] outfit, [[VideoGame/EarthBound Ness and his buddies]] making an appearance in a secret room, going into Webcomic/ProblemSleuth's office, and a brightly-colored John with a lolipop stuck in his hair floating near the corner of the screen. [[spoiler:The candy-themed alternates specifically show up, as does the ''Final Fantasy'' room, but nothing else about them is ever mentioned again, and Trickster powers do not seem to have any connections with what is demonstrated on the mode itself. In fact, their design was even ret-conned to resemble Cherubim more]].
* In a comic that is otherwise a fairly ordinary retelling of ''VideoGame/FinalFantasyVI'', we get to the boss batle with the two magitek knights in the Figaro desert. [[http://ff6comic.comicgenesis.com/d/20090928.html One of them]] appears to be... [[VideoGame/FinalFantasyIV Cecil]]?
* TragicDeaths has one in the first story arc. It's even lampshaded by Petalklunk.
* In OurLittleAdventure, Julie sang about the [[http://www.youtube.com/watch?v=dL30lU26egw glory which is Megaman]] in order to prove herself and get the [[PlotCoupon pendant]]. This didn't work well, though she got the pendant anyway due to a much more efficient look through her thoughts.
* Another literal invocation from ''RegularGuy'' [[http://www.stillontheshelf.com/RegularGuy/?p=184]].
* In one strip of DarthsAndDroids (done on April Fools Day, that context can get lost when reading the entire series), during the ''AttackOfTheClones'' sequence, Padme "dies" in the desert. The scene then abruptly shifts to screencaps of the scene from ''Film/ThePrincessBride'' where the Grandson argues with Grandpa over Westley's death (only now they're arguing about Padme's). To make it even more confusing, Grandpa has the yellow speech balloons that indicates he's the GM, while the Grandson has the white speech balloons of a roleplayer. And the Grandson even calls him "Grandpa". (Is the GM a grandfather?!) Keep in mind, this strip is supposed to be about a bunch of players at a TabletopRPG.
** This is apparently a reference to the campaign the players ran (offscreen) between Episode I and Episode II, which applied the same idea to ''The Princess Bride'' as the main comic does to ''Star Wars''. Even in that context it still makes little sense.
* This was an unfortunate result of Dan of ''Webcomic/ElGoonishShive'' declaring that he's [[LighterAndSofter bringing silly back]]. One of the first tries involved Sarah calling for the Demonic Duck for absolutely no logical reason, leading to a bizarre exchange, that ends with the duck jumping out of the car, and the conversation picking up from exactly the same spot it left off, wasting a whole page, plus two panels on basically nothing.
* ''{{Drowtales}}'' had [[http://www.drowtales.com/mainarchive.php?sid=617 a random dwarf dressed as Santa Claus]] with "Merry Christmas Elven Bastards" carved into his cannon. Besides being a rather bizarre [[BreakingTheFourthWall fourth-wall breaking moment]] outside of a chibi page (where such things usually occur), he never shows up again after this page. WordOfGod is that it was a joke since the page was published around Christmas.
* The ''Webcomic/{{Mulberry}}'' comic "Jack the Ripper" has Jack's attempts to download illegal patches [[http://www.platypuscomix.net/mulberry/index.php?issue=8&page=7 invoke the presence]] of some [[CartoonAllStarsToTheRescue cartoon all-stars]] hoping to talk him out of it. Mulberry squishes the characters before they can actually go find Jack, and she never tells anyone that she met them.
** WordOfGod says this scene was originally part of a BrickJoke, with different characters coming later to lecture Jack, but the second scene would have disrupted the flow.
* To celebrate [[http://www.the-whiteboard.com/autotwb1500.html the 1500th strip]] of ''Webcomic/TheWhiteboard'', a big can-can line appears out of nowhere on Red's paintball field with most of the main cast, leaving behind some debris in the last panel along with a very confused Pirta.
* ''Webcomic/{{Sonichu}}'' has the WesternAnimation/FamilyGuy [[http://archive.cogsdev.org/cwcipedia/index.php?title=Issue_7/Page_10 "skitch".]]
** Also, [[http://archive.cogsdev.org/cwcipedia/images/4/4b/SchuComic7P27.jpg the reenactment of a scene]] from ''BeavisAndButthead'' for no purpose other than AuthorAppeal.
* ''Webcomic/{{xkcd}}'':
** Pretty much any strip that involves [[CloudCuckoolander Beret Guy]]. Even in a series known for zaniness and little plot continuity, he and his train of thought are ''so'' over-the-top strange as to delve straight into {{BLAM}} territory.
** Ron Paul [[{{VideoGame/Pokemon}} evolving]] into [[{{Film/Tron}} Tron Paul]] in the 5-part [[http://xkcd.com/494/ "Secretary"]] comic. The rest of the mini-series is within the bounds of reality. That bit definitely isn't, but no explanation is given, there's little point to it besides the IncrediblyLamePun, and once Paul turns back into a mild-mannered geezer, no one says anything about it. Actually, the senators apparently forgot about the entire hearing-with-a-psycho they just did [[AttentionDeficitOohShiny because wow the whole building is a giant ball pit now, hooray!]]
* ''WebComic/DragonBallMultiverse'': The beginning of the tournament's second day is celebrated with a musical performance by the ''Film/StarWars'' Cantina Band. Pan and Tapion enjoy the musical interlude, Bra, Frieza's Family and Babidi do not. [[spoiler: Zen Buu thought it was so bad that he demanded that they give their instruments to him so he could play.]]
* ''Webcomic/MassEffect3Generations'':
** The so-called “Neo Medi-gel” is mentioned once, with absolutely no explanation of what it is, when it was made, etc. and promptly forgotten again, doing nothing but disconnecting the comic from canon even further.
** Also, the so-called “vorcha bats” which are presumably husks… as are quarian spider husks, never seen or hinted at in any of the games.
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