A variant of XtremeKoolLetterz, seen used in both work titles and in names.

The letter X [[LetXBeTheUnknown is already fascinating]] [[XMakesAnythingCool and cool]], so double the X, double the awesomeness! Right? Much like XtremeKoolLetterz, it's often meant to evoke {{badass}}ery, or lend the show an air of youthful [[TotallyRadical hipness and coolness]].

How exactly are you supposed to pronounce this [[NoPronunciationGuide is usually unclear]].


[[folder: Advertising ]]

* Advertising/TheMostInterestingManInTheWorld doesn't always drink beer, but when he does, he prefers Dos Equis ([[labelnote:XX]]from Spanish, literally, 'two X'[[/labelnote]]). Stay thirsty, my friends.


[[folder: Anime ]]

* ''Anime/AfterWarGundamX'' has, of course, the MidSeasonUpgrade MS, the "Gundam Double X". However, this is [[JustifiedTrope justified]] in that it was designed to possess double the firepower of the Gundam X, as well as two [[WaveMotionGun Sattelite Cannons]], essentially making it twice the Gundam the X was. It's also played with in that despite its pronunciation, "XX" appears ''nowhere'' in its name or designation.
* However, the designations of the Gundams in ''Anime/MobileSuitGundamWing'' play this straight, with all of their alphanumerics beginning with "XXXG".


[[folder: Card Games ]]

* ''Fluxx''


[[folder: Comic Books ]]

* ''TheMaxx''
* MarvelComics' Roxxon Energy Corporation, a BrandX of Exxon (see RealLife section).
* ''XXXenophile''


[[folder: Film ]]

* The German movie ''Film/DerWixxer''.
* Foxxy Cleopatra from ''Film/AustinPowers in Goldmember''.
* ''Traxx''


[[folder: Literature ]]

* The Taxxons from ''Literature/{{Animorphs}}''.
* When Max Barry wrote the book ''Syrup'', he authored it under a byline of "Maxx Barry". When he wrote JenniferGovernment, he considered making it 3 Xs before settling back on 1.
* The Franchise/StarWarsExpandedUniverse gives us a character with the alias [[LeetLingo Teh Roxxor]].


[[folder: Live Action TV ]]

* The spaceship {{Lexx}}, from a series of the same name.
* German game show ''[=GoXX=]''.
* The German show ''Reläxx''.
* The main character (and host) of ''DoubleTheFist'', Steve Foxx.
* In one episode of ''Series/HowIMetYourMother'', a fake magazine (featuring women bodybuilders) called ''Muscle Sexxy'' is mentioned.


[[folder: Music ]]

* Music/TheyMightBeGiants' "S~E~X~X~Y", which is always pronounced as the 5 letters. Not explained, except "because it's extra, baby".
* The xx named themselves after this.


[[folder: Video Games ]]

* ''Tower Bloxx''
* ''VideoGame/{{Zaxxon}}''
* ''[[http://hol.abime.net/4313 Exxon]]''
* ''Hexxagon''
* ''Boxxle,'' a ''VideoGame/{{Sokoban}}'' game on the original GameBoy.
* ''VideoGame/{{Vexx}}'', a PlatformGame.
* ''[[RumbleRoses Rumble Roses XX]]''. If there ever were a third game, [[FranchiseKiller which there probably won't]], perhaps it would have been called '''XXX'''.
* ''Akumajō Dracula XX'', the Japanese title of the SNES game ''[[Franchise/{{Castlevania}} Castlevania: Dracula X]]''.
* ''Ataxx''
* The villains in the [[SimulationGame flight simulator]] ''Epic'' are the alien race Rexxon.
* Naxxramas, a raid dungeon in ''VideoGame/WorldOfWarcraft''.
* ''Cardiaxx'', a sci-fi style shoot 'em up for the Amiga.
* The X-Nauts in ''VideoGame/PaperMarioTheThousandYearDoor'' have a computer named Tec-XX. This is a StealthPun, actually: [[spoiler:"[[HeelFaceTurn double cross]]".]]
* Some of the songs in the Max series in ''DanceDanceRevolution'' add a second X for good measure.


[[folder: Web Original ]]

* "Boxxy", an author of memetic Website/YouTube videos.
* Website/KomixxyPl


[[folder: Western Animation ]]

* Haxx, a character from ''WesternAnimation/ExtremeDinosaurs''.
* Foxxy Love on ''WesternAnimation/DrawnTogether''.


[[folder: Real Life ]]

* The xx is an indie band. The name fits.
* The company [[http://en.wikipedia.org/wiki/Blaxxun Blaxxun]] (originally spelled "Black Sun").
* Exxon Mobil Corporation.
* Minolta Maxxum cameras (now Sony Alpha).
* Redd Foxx (real name: John Elroy [[Series/SanfordAndSon Sanford]])
* As a tribute to Redd Foxx, actor/comedian/singer Jamie Foxx (real name Eric Marlon Bishop)
* XXX-rated movies. This is really just a marketing gimmick, implying "X" is dirty. (Even if a lot of legitimate films were rated X.) And that "XXX" is [[RuleOfThree three times]] dirtier.
* Exxos, a short-lived ScienceFictionVideoGames publishing label of ERE Informatique, a French video game company of the 1980s.