NB: this was mined with minimal changes from a threadI may or may not have come up with this idea. I suspect I may have  stolen it from GM through crypomnesia, prediction, wanking, following  the same line of thought, or quantum telepathy dongs.
You all might be aware of the idea of memebombs. I frame memebombs  in a slightly different structure than the Discordian Power Elite  (whoever they are), so I'll summarize my model: you've got at least one  memeplex (a bunch of ideas that play nice together) and one of them is  probably dominant most of the time. A memebomb is a short slogan that  targets common dominant memeplexes and subverts them in such a way that  they either self-annihilate, become patently absurd, or mutate into  something else entirely (ideally). You more or less want to target a  memeplex and get behind its defenses, and then poke it until it  explodes, loses an eye, or grows a new eye. In the BIP metaphor, a  memebomb blows up a wall, leaving shrapnel everywhere to use for  remodeling.
Alright. But there are a couple problems with memebombs. One problem  is that, being short slogans, one can recognize them for what they are  more often and just block them out. Another is that they only target one  memeplex -- if you hit the dominant one, the next most dominant will  probably try to take over, and if you hit a non-dominant one it may just  give the others more power over the behavior of the person. Three,  there's only so much distribution it can get before being subverted  itself. Four, the form tends to make people think that anything short  and clever-sounding counts as a memebomb, which is why the SOMA is full  of dreck.
Alright. So, what's a culture bomb? Well, a culture is more or less a  whole ecosystem of memeplexes fed to children (and adults). A culture  is somewhat like a genre in fiction -- a set of cliched yet not  necessarily negative or counterfactual tropes (in this case, ideology or  psychology tropes) that are often found together more or less for  hysterical rasins (tradition or whatever). A culture bomb is the  nonfiction equivalent of a deconstructor fleet, and the memebomb  equivalent of a kiloton nuke full of anthrax and mercury. The culture  bomb is a full work of fiction disguised as a genre piece that,  hypersigil-like, subverts or mutates entire aspects of the culture of  the target audience only after the reader has had enough time to finish  it, chew on it, and recommend it to friends.
There are several possible media for culture bombs. I'll suggest a  few I'm considering, along with pros and cons.
American comics
Pro: absurdly rich source of material to play with, some established  names who might play along, already the home of plenty of successful  hypersigils both accidental and on purpose
Con: difficult to get in on, big names (big red arrow pointing to  you), still kinda fringe, ascended fanboys at the gates
Fanfiction
Pros: subverts an existing canon and promulgates your ideas in fanon  if you're lucky, easy access to a reasonably wide audience, relative  anonymity
Cons: thirteen year old girls aren't exactly the pinnacle of  society, ideas may mutate to subvert your original intent or just  sterilize it in derivative works, you need to be a fan to start out  with, you have to write actually good fanfiction, anne rice might sue  you
Webcomics
Pros: potentially huge audience, easily time-segmented so that  people can be brought into the fold by fans before the intent is even  fulfilled, potentially madly obsessive fans
Cons: may be even less mainstream than american comics, you need to  be able to draw probably, everyone else had the same idea too after they  made their blog and wiki and joined twitter
Imageboard:
Pro: tendency towards high-frequency high-feedback communication  within an imageboard can refine ideas
Con: tendency towards high-frequency high-feedback communication  within an imageboard can subvert and/or sterilize intent, tldr responses
Bonus: the idea of a culturebomb might itself be a culturebomb if  introduced in the right context. I'm planning to work it into a later  chapter of a story.
You might consider a number of existing phenomena (historically) to be  culturebombs. In fact, particular ideas have drastically modified the  cultures from which they were born, in absurd and unpredictable ways.
Examples:
* Nuclear weapons -- caused the cold war, the idea of mutually  assured destruction, deterrent-based warfare, "purity of essence"
* The holy trinity -- people can be monotheists and polytheists  simultaenously by not knowing how to count, a man can be his own son and  a ghost at the same time
* Darwinian natural selection -- led to memetics, was used as an  excuse by businessmen and nazis, caused some groups of creationists to  ask very strange questions about monkeys
Any piece of good art can be considered a culturebomb to some  extent, but culturebombs are more often accidental. This might be  because people are bad at making them on purpose, or it might be because  people weren't thinking about them in a way that's conducive to making  them. It might also be because no one wants to make them.