* Leftover Soup. In the first act of the comic, Jamie [[http://leftoversoup.com/archive.php?num=10 reconstitutes rice crispies]] into rice as a way to show how good he is at cooking. Better than 500 comics later, it is used as a punch line [[http://leftoversoup.com/archive.php?num=555 here.]] The explanation's on the next page. [[spoiler: He actually took it out of a homemade hacky sack he had in his pocket.]]
* Webcomic/SchlockMercenary has a good one: Schlock complains of not getting to use his line about [[http://www.schlockmercenary.com/2008-06-18 'committing suicide when [it] saw him coming.']] Lo, one incident with Creomar insurrectionists and [[http://www.schlockmercenary.com/2008-11-09 a plasma grenade later...]]
** Not the first ''or'' last one; in fact, Howard Tayler seems to ''love'' this setup, based on how often he uses it.
* Near the beginning of ''{{Shadowgirls}}'', a trio of {{Jerk Jock}}s attempt to rape Becka, and are stopped only [[MuggingTheMonster by the timely awakening of her Shadowchild powers]]. Fast-forward to the epilogue, and [[http://www.shadowgirlscomic.com/comics/book-1/chapter-8-epilogue/epilogue-part-two/ it appears]] [[http://www.shadowgirlscomic.com/comics/book-1/chapter-8-epilogue/epilogue-part-three/ that Becka's mom]] [[http://www.shadowgirlscomic.com/comics/book-1/chapter-8-epilogue/epilogue-part-eight/ wasn't quite finished with them...]]
* ''Webcomic/SluggyFreelance'': [[http://www.sluggy.com/comics/archives/daily/010602 June 2]] and [[http://www.sluggy.com/comics/archives/daily/010817 August 17]], 2001 (the ship in the second strip is the crotch of the megarobot GOFOTRON)
** In the ''VideoGame/WorldOfWarcraft'' parody, Riff is annoyed that a certain drop only happens when you kill ''female'' Green Slimeblobs, and he's having trouble distinguishing between the male and female ones. After Zoe is talked into playing, she gets annoyed that every female in the game is a {{Stripperiffic}} hottie, even the races whose males are grotesque. [[http://www.sluggy.com/comics/archives/daily/080813 Including, apparently, the Green Slimeblobs.]]
-->'''Riff''': "In retrospect, why the hell didn't I notice that sooner?"
* ''Webcomic/EightBitTheater'' deserves a trophy for this kind of thing, containing several throwaway gags that get brought back years after they were first told.
** In the [[http://www.nuklearpower.com/2001/03/20/episode-007-kamehameha-or-something/ 7th strip]], Black Mage is reading a ''Nintendo Power'' magazine. [[http://www.nuklearpower.com/2010/02/20/episode-1221-longest-set-up-in-webcomic-history/ 9 years and over 1,200 strips later]], the joke is referenced in the biggest Anti-Climax of the series (CAREFUL, MASSIVE SPOILERS ON THIS). The title? "Longest Set Up In Webcomic History".
** The Armor of Invincibility, something mentioned in the very first strip, is brought back up again in the ''very last strip'', a grand total of 1,225 strips later, though this also has heavy flavours of BookEnds
* ''Webcomic/{{Precocious}}'':
** In the AltText of a strip, after Mike gives Tiffany a computer, Sky says that next time she sees him she's going to [[http://www.precociouscomic.com/archive/comic/2010/04/05 punch him in the face.]] [[http://www.precociouscomic.com/archive/comic/2011/03/04 333 strips later]], she does.
** When Bud said that he would put [[http://www.precociouscomic.com/archive/comic/2013/04/30 crayons in the closet and forget them]] he [[http://www.precociouscomic.com/archive/comic/2013/06/07 wasn't kidding]]. Bonus points for joke spanning multiple months.
* ''Webcomic/{{Homestuck}}'' has a few examples.
** Dave created his first [[http://www.mspaintadventures.com/?s=6&p=003729 UNREAL AIR]] in Act 4, after which it promptly floated away. Six months pass and it's mentioned in [[http://www.mspaintadventures.com/?s=6&p=004736 a conversation]] between Dave and Davesprite as probably winding up on Skaia eventually. Six months after that, [[http://www.mspaintadventures.com/scratch.php?s=6&p=005845 it finally does]].
** Andrew Hussie [[http://www.mspaintadventures.com/?s=6&p=004387 compares himself]] to the kid from ''Film/TheNeverendingStory''. Then he [[http://www.mspaintadventures.com/?s=6&p=004970 lives]] [[http://www.mspaintadventures.com/?s=6&p=004971 the]] [[http://www.mspaintadventures.com/?s=6&p=004974 dream]].
** The "What Pumpkin" running gag, has been around since Jail Break. [[http://www.mspaintadventures.com/?s=6&p=006122 After over 6000 updates, it turns out Jake was behind it]]...[[http://www.mspaintadventures.com/?s=6&p=006333 although Roxy might have had something to do with it too.]]
** Right after Dave was introduced, he considers [[http://mspaintadventures.com/?s=6&p=002216 bleating like a goat for ironic purposes]]. No less than ''3960'' pages (and 2 years) later, Brobot bleats like a goat for [[http://mspaintadventures.com/?s=6&p=006176 strategic]] and [[http://mspaintadventures.com/?s=6&p=006177 ironic]] purposes.
** [[http://www.mspaintadventures.com/?s=6&p=001972 John is mentioned]] to have a [[PlotAllergy peanut allergy.]] This never comes up until [[http://mspaintadventures.com/?s=6&p=006305 about 4000 pages later]], where it turns out Jake[[spoiler:, John's AlternateUniverse relative,]] shares the same allergy.
** 01/09/12 gives us the second longest example in the comic. On [[http://www.mspaintadventures.com/?s=6&p=001932 page 32]] John talks about a book of his that is so heavy, it could kill a cat if dropped. Cut to 01/09/12, almost three years later, and [[spoiler: Roxy attempts to prove to Jane]] that she has an appearifier by appearifying the very same book. Right on top of her pet cat.
** In Hivebent, some of the trolls use "special stardust" to try and fix up things around them. Turns out [[spoiler: it doesn't have any special properties whatsoever. But it is a Cherub's favorite snack.]]
** The longest one to date: one of the very first commands in Homestuck was for John to [[http://www.mspaintadventures.com/?s=6&p=001905 retrieve his arms]], and now, 5th of april 2013, using the "ultimate weapon", [[http://www.mspaintadventures.com/?s=6&p=008004 John's]] [[http://www.mspaintadventures.com/?s=6&p=008005 are]] [[http://www.mspaintadventures.com/?s=6&p=008006 every]][[http://www.mspaintadventures.com/?s=6&p=008007 where]].
* ''Webcomic/{{xkcd}}'' does this frequently.
** In addition to the two strips that provide the page image, there's also the [[http://xkcd.com/220/ Super]] [[http://xkcd.com/517/ Soaker]].
** [[http://xkcd.com/325 The]] [[http://xkcd.com/576/ bobcat]]. [[note]]The second reference is in the [[AltText alt-text.]][[/note]]
** A Tetris themed one. The first happened in comic [[http://xkcd.com/724/ 724]]. The next occurred in [[http://xkcd.com/888/ 888]].
** Also one involving Bobby Tables: The first mention is in comic [[http://xkcd.com/327/ 327]]. The next (apart from a [[http://xkcd.com/342/ quick cameo]]) is in the alt text of comic [[http://xkcd.com/884/ 884]]. Comic [[http://xkcd.com/1555/ 1555]] makes an oblique reference to the running joke, along with a host of other ShoutOuts.
** The alt-text of comic [[http://xkcd.com/188/ 188]] is "And watch out for that guy from comic [[http://xkcd.com/53/ #53]]."
* [[http://www.maniccomics.com/blog/2011/08/15/come-fly-with-me/ These]] [[http://www.maniccomics.com/blog/2011/08/19/come-fly-with-me-part2/ two]] strips of the TabletopGame/{{Chess}} based web comic series ''maniccomics''.
* In [[http://www.qwantz.com/index.php?comic=100 this]] ''Webcomic/DinosaurComics'' strip, T-Rex forgets his wallet on the moon. 323 strips later, we get the AltText ("hey, my wallet's here") to [[http://www.qwantz.com/index.php?comic=423 this strip]].
* In [[http://www.giantitp.com/comics/oots0233.html this episode]] of ''Webcomic/TheOrderOfTheStick'', Elan saves the day with a magic item abandoned as 'useless' [[http://www.giantitp.com/comics/oots0009.html 224 strips earlier]].
** Also, a Cleric realizes his [[http://www.giantitp.com/comics/oots0456.html mistake]] far too [[http://www.giantitp.com/comics/oots0486.html late]]. A blink and you'll miss it gag.
*** There are a few of those.
--> Belkar: [[http://www.giantitp.com/comics/oots0421.html How did you ever get so many Potions of Heroism?]]
--> V: [[http://www.giantitp.com/comics/oots0135.html Do not ask.]]
** [[http://www.giantitp.com/comics/oots0202.html stop oppressing my culture,]] [[http://www.giantitp.com/comics/oots0779.html you ethnocentric bitch!]]
** [[http://www.giantitp.com/comics/oots0136.html Waited 837 strips]], [[http://www.giantitp.com/comics/oots0942.html to drop this one.]]
** In [[http://www.giantitp.com/comics/oots0331.html strip 331]], Roy, attempting to phrase his question as exactly as possible so the Oracle can't screw him over, asks whether Xykon will be at Girard's Gate or Kraagor's Gate first, forgetting that there's a ''third'' gate. [[http://www.giantitp.com/comics/oots0899.html Strip 899]], in which Xykon, having conquered the Azure Empire, tortured the Sapphire Guard, searched for his phylactary and done a few other errands ''finally'' arrives at Girard's Gate, is called "Prophecy Fulfilled".
* In [[http://www.vgcats.com/super/?strip_id=13 this]] ''SuperEffective'' strip, the old man who teaches you how to catch Pokemon falls asleep. 5 strips later, he [[http://www.vgcats.com/super/?strip_id=18 wakes up]] and finishes what he was saying.
** In a ''VGCats'' strip focusing on tabletop RPG, Leo ties a dead rat to a stick and dubs it a "rat-flail", which annoys DungeonMaster Aeris enough to tell him that the dead rat gave him plague and he died. The rat-flail returns in a ''Manga/{{Bleach}}'' parody [[http://www.vgcats.com/comics/?strip_id=223 some time later]]. Aeris-as-Byakuya is ''not'' amused.
* In ''[[WebComic/TheAdventuresOfDrMcNinja Dr. McNinja]]'', a few pages in "There Is A Raptor In My Office," Doc makes a few mentions about how diabetics [[http://drmcninja.com/archives/comic/3p2/ are]] [[http://drmcninja.com/archives/comic/3p5/ always]] [[http://drmcninja.com/archives/comic/3p24/ whining]]. Five years later, during "Futures Trading," Doc's clinic gets shut down because everyone thinks he's dead, and there's [[http://drmcninja.com/archives/comic/21p104/ a whiny diabetic outside the clinic as it shuts down.]]
* In [[http://www.penny-arcade.com/comic/2005/01/05/ the installment]] of ''Webcomic/PennyArcade'' that introduced TheMerch, the keen insight he gives is "I fucked your dad!". Guess what he says to SantaClaus at [[http://penny-arcade.com/comic/2005/12/30 the end]] of the Christmas arc featuring him.
* ''Webcomic/{{Nedroid}}'': The AltText in the last page of the [[http://nedroid.com/2010/10/robotginald-8/ Robotginald story arc]] references Reginald's supposedly [[http://nedroid.com/2009/07/my-nickname-sledgehammer/ full name]].
* In chapter 7 of ''Webcomic/{{Drowtales}}'', Chrys'tel was seen wearing [[http://www.drowtales.com/mainarchive.php?sid=4864 a set of black and red clothing]], and after she's captured [[http://www.drowtales.com/mainarchive.php?sid=4996 Ariel takes them]] in chapter 8 in order to impersonate Chrys'tel, though she never wound up using them. Then in Chapter 30, ''22 chapters later'', [[http://www.drowtales.com/mainarchive.php?sid=7625 they're worn by]] [[spoiler:Diva'ratrika, her ''grandmother'', who due to plot important reasons now looks the same age]], which later results in [[http://www.drowtales.com/mainarchive.php?sid=7775 a hilarious payoff]].
* In ''Webcomic/ElGoonishShive'', Dan Shive will often include links to prior strips whose subject matter was referenced underneath the new chapters. As can be expected, several of these point out Brick Jokes, while some of them are Bricks of the [[InvokedTrope Invoked variety]].
* In [[http://brawlinthefamily.keenspot.com/2011/12/05/383-nepotism/ this]] ''Webcomic/BrawlInTheFamily'' comic, Daisy catches Wiggler and Lakitu trying to get special privileges from their brethren in ''MarioKart 7''. [[http://brawlinthefamily.keenspot.com/2011/12/15/386-hot-stuff/ Three comics later...]]
* ''Webcomic/CyanideAndHappiness'' plays this very straight with their comics about [[WheresWaldo Waldo]]. For those who don't want to experience the comic front to back, they introduce him [[http://www.explosm.net/comics/409/ here]], he returns [[http://www.explosm.net/comics/418/ about a week later]] and then again [[http://www.explosm.net/comics/1282/ two and a half years later]].
** The first and last moments of the animated episode [[http://youtu.be/kRPJh-LJq1o Waiting for the Bus]].
* In ''Webcomic/DarthsAndDroids'', [[PresidentEvil Chancellor]] [[CloudCuckoolander Valorum]] mentions [[http://www.darthsanddroids.net/episodes/0139.html wanting to turn people into cyborgs]] under his command. [[spoiler:[[WhamLine In Episode III, General Grievous]] [[ArcWelding reveals himself to be Valorum]] [[http://www.darthsanddroids.net/episodes/0466.html with a similar line.]]]]
* ''Webcomic/ManlyGuysDoingManlyThings'': "[[ThreeHundred When Spartans]] [[WarGod play Gay Chicken]], [[http://thepunchlineismachismo.com/archives/529 they play]] [[http://thepunchlineismachismo.com/archives/910 for keeps.]]" So sayeth Commander Badass.
** [[http://thepunchlineismachismo.com/archives/938 There's even a conclusion to the game.]] [[spoiler: Leondias concedes defeat to Kratos so that Leondias can return to his wife and son, but it's a PyrrhicVictory as Kratos is reminded that he no longer has a family.]]
* ''Webcomic/MenageA3'': In an [[http://www.menagea3.net/strips-ma3/two_airbags early strip]], Gary imagines [=DiDi=] tied up with a video game controller. [[http://www.menagea3.net/strips-ma3/bad_amazon_bad 585 strips later]]... (Borderline NSFW)
* ''Webcomic/QuestionableContent'' does a quick and somewhat backwards one [[http://questionablecontent.net/view.php?comic=2209 here.]] An initially pointless anecdote about disgusting smoothies is made, and the comic veers off in another direction. Just when you think it's over, [[CordonBleughChef someone orders a smoothie]].
* ''Webcomic/ScandinaviaAndTheWorld'' Three years and over 200 comics later, Norway brings up the "marriage" that happened in the very first comic.
* The Big/Auto fusion in ''Webcomic/TwoEvilScientists''.
* In the ''Webcomic/{{PVP}}'' strip for [[http://pvponline.com/comic/2000/01/24/mon-jan-24/ January 24th 2000]], Brett "predicts" that Francis will lose his virginity on May 24th 2008. In the strips for [[http://pvponline.com/comic/2008/05/23/falling-down/ May 23rd]] and [[http://pvponline.com/comic/2008/05/26/change 26th 2008]]...
* ''Webcomic/ExterminatusNow'' does this during its first storyline. The bad guys expect the inquisition to barge in with a popular Series/MontyPythonsFlyingCircus [[UsefulNotes/TheSpanishInquisition quote.]] They briefly [[http://exterminatusnow.co.uk/2003-11-14/comic/meet-the-crew/not-this-time lampshade it,]] then leave it hanging for ''[[http://exterminatusnow.co.uk/2007-10-27/comic/black-and-white/timing-is-everything four years.]]''
* ''Webcomic/LeagueOfSuperRedundantHeroes'' does this with rectal itching (really...). First time round is in Laser Pony's origin story, with the payoff a couple of frames later... months later, Maroon Jackdaw appears to have the same issue...
* ''Webcomic/{{Waterworks}}'': The worker who [[http://mspfanventures.com/?s=43&p=74 spins on his head like a Hitmontop]], and [[http://mspfanventures.com/?s=43&p=124 re-appears later.]]
* ''Times Like This'' did three epic Brick Jokes that took years to complete.
** In the 2007 strip "Five-Year Discount", Cassie time-travels five years into the future and buys a cocktail dress at a clearance center. In October 2012, a sequel to the strip, "Five Year Discount Revisited" appeared where Cassie ran into one of her friends at the same discount center.
** In the 2009 strip "We Were Warned... That Some Folks Would Panic", Cassie time-travels to 2013 to prove that the world didn't end. In the first strip of 2013 ("Just Checking!"), she walks through a portal to the exact same place the "We Were Warned..." took place and said she told the reader nothing would happen.
** In Part 16 of the storyline "Back To The Garden" (September 10, 2009), Cassie, Matt, and Bethany find their orange van destroyed in a mudslide that happened during Woodstock. Five years later, in Part 13 of the storyline "Back To The New Garden" (September 22, 2014, just over five years later), Cassie and Phillip walk through the mess after Woodstock when Phillip points out an orange van that ended up in a mudslide.
** In a shorter Brick Joke, the September 2012 strip "On The Down Low" shows Agent Scott handing Phillip an envelope with a message we don't see at all. In a November 2012 strip, we find out the message [[spoiler: is Cassie's ring size, which Scott gave to Phillip just before he went to buy Cassie's engagement ring.]]
*** However, there could be a longer Brick Joke in the making (it depends if it's still around at the time): The 2012 strip "Loopy" features Future!Cassie pranking Cassie by shooting her with a holographic bullet, saying that she's been waiting 40 years to do it.
* Early in ''Webcomic/GoGetARoomie'', [[http://www.gogetaroomie.com/index.php?id=91 Aggie tells Lillian about Roomie's "weakspot"]] ("Her back is like a ''huge cli-''" "Clicking button that turns her on and off?" "One more than the other, but you get the idea!"). Later, [[http://www.gogetaroomie.com/index.php?id=420 when Roomie is singing and wakes Lillian up, Lillan touches her back, saying "Off"]]. Still later, [[http://www.gogetaroomie.com/index.php?id=495 Woc tries to talk to Roomie while giving her a back massage]].
* In ''Webcomic/LeftoverSoup'', [[http://leftoversoup.com/archive.php?num=384 Jamie's wall art]] for [[http://leftoversoup.com/archive.php?num=385 the bathroom at his and Ellen's place]] [[http://leftoversoup.com/archive.php?num=468 assumes a viewer of a particular height.]]
* ''Webcomic/SomethingPositive'' recently had a ''very'' [[http://somethingpositive.net/sp12192001.shtml early example of Daven's jerkishness]] [[http://somethingpositive.net/sp01172014.shtml come back to bite him]]... ''thirteen years later.''
* ''WebComic/DragonBallMultiverse''
** "Bear my child!"
*** "God damn it Kakarot!"
** [[spoiler:Dabura reappears many chapters after last being seen, having been healed by Majin Buu offscreen after offering him some candy, the same candy Majin Buu had conjured during the lunch break too.]]
* ''Webcomic/{{Shortpacked}}''
** Eight years after her [[http://www.shortpacked.com/index.php?id=190 first appearance]] in a one-off gag, the "That means it's free, right?" woman returns in a [[http://www.shortpacked.com/index.php?id=2055 storyline]] about Sydney Yus.
** Sydney Yus herself is a Brick Joke, starting off as a [[http://www.shortpacked.com/index.php?id=162 one-off gag]] that convinced Robin she needed to pull the Drama Tag, then [[http://www.shortpacked.com/index.php?id=804 reappearing unexpectedly]] two years later, before becoming a recurring character.
** A [[http://www.shortpacked.com/index.php?id=272 2006 strip]] suggested that by 2015, ''Shortpacked!'' would be entirely about Ninja Rick killing spiders. The strip actually ''ended'' in January 2015, but the final storyline [[http://www.shortpacked.com/index.php?id=2188 does indeed involve Ninja Rick killing spiders]].
* In ''Webcomic/WapsiSquare'', [[http://wapsisquare.com/comic/gotchaleaf/ Brandi]] is [[http://wapsisquare.com/comic/leftmeclues/ victim]] of one due to the [[http://tvtropes.org/pmwiki/pmwiki.php/Main/GroundhogDayLoop Groundhog Day Loop]].
* ''Webcomic/BugMartini'' has a little one when the author decides to [[http://www.bugmartini.com/comic/how-to-be-an-artist/ take a break from fart jokes]] and, some strips later, [[http://www.bugmartini.com/comic/heavenly-hyperbole/ this happen.]]
* ''Webcomic/TheDragonDoctors'' had a gag in Chapter 14 - [[http://dragondoctors.dhscomix.com/archives/comic/ch-14-page-17-bw Sarin suggestion to Aki]] that [[spoiler:she might want to turn into a man again to conceive a child with Goro]], one which is [[LuminescentBlush too embarrassing to contemplate]] - return in Chapter 20, but was [[http://dragondoctors.dhscomix.com/archives/comic/ch-20-page-37 too adorable for words, instead.]]
* In the second issue of ''Webcomic/GirlGenius'', Agatha encounters a brain-damaged spark experimented on by Baron Wulfenbach, who appears terrified that the baron might discover [[http://www.girlgeniusonline.com/comic.php?date=20031210 his bears]]. Over a decade later, it turns out that he [[http://www.girlgeniusonline.com/comic.php?date=20150220 wasn't talking about his toy bears]].
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