• Frak, Battlestar Galactica: Whether you spell it frack or frak, it's currently the most used replacement for the f-bomb, courtesy of the original BSG show. That's right, Ronald D. Moore didn't invent this sucker, although he sure uses it a lot more than they did back in the 1980s. Plus it rolls off the tongue nicely. Here's a video education on all the uses it has.

  

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• Frell, Farscape: Frell was Farscape's own version of everyone's favorite f-word, and used extensively on the show after appearing in the first season. "Frell Me Dead" has become a favorite phrase among fans of the show, appearing on shirts and wristbands, and they even use the term "frellwit" on the show. Pretty frelling cool.
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• Gorram, Firefly: Firefly had a whole new language of swears due to the fact that Joss Whedon assumed that in the future Chinese and English would meld together, and that's led to some colorful swears for the show, like "Ching-wah tsao duh liou mahng" translated as "frog-humpin' bastard." However, gorram strands out as a simple perversion of goddamn, and probably made the most appearances on the show.
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• Shazbot, Mork & Mindy: While it never quite caught on in pop culture, Mork's substitute for shit still exists in the Tribes video games. Robin Williams probably made this word up himself, and it has the bonus of sounding like something a robot might do on your carpet.
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• Poodoo, Star Wars: George Lucas' prequels not only gave us bad acting, but it included fart jokes and this word for Bantha shit in Episode I. Which helps give you a single word to sum up the prequels with.
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• Smeg, Red Dwarf: Lister's favorite swear word from this trapped in space show obviously seems derived from smegma (wiki it if you're not informed), but series creator Grant Naylor claims he never knew that word when he wrote in smeg. He just thought it sounded like a future curse word. As Lister would say, "Whatever, you smegging smeghead."
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• Farathoom, Don't Bite The Sun: Tanith Lee's 1976 novel was full of hedonistic pleasure domes, mutable appearances and genders, and new swear words. Farathoom was probably the strongest, meaning "bloody fucking hell," although "floop" meant "cunt." We're not sure which one is cooler.
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• Shock, Spiderman 2099: Marvel Comics went on a tear in the 1990s, offering up versions of their classic characters in the year 2099. My favorite was Miguel O'Hara as the semi-mutated version of spiderman, who frequently would yell "What the shock?!" when he would be attacked by Venom 2099.
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• "I seem to be having tremendous difficulty with my lifestyle", The Hitchhiker's Guide to the Galaxy: Arthur Dent utters this phrase, just as a freak wormhole opens up in the space-time continuum, and it ends up triggering a massive interstellar war because in the Vl'hurg tongue this was the most dreadful insult imaginable. Just to encourage you to watch your language out there.
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• Smurf, The Smurfs: It just occurred to me that since Gargamel created Smurfette in his home laboratory, she's got herself a quasi-spot in scifi. Couple that with the fact that the Smurfs use "smurf" as a verb, noun, adjective, and everything else under the sun, and probably more than one Smurf has banged his thumb with a hammer and yelled out "SMURF!" Or if Jokey Smurf leaves an exploding box in your house, you'd probably tell him to Smurf Off.
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Barbarella (1968). The original scifi porn film. Jane Fonda's blonde mega-mane and anime eyes radiate sexuality. It starts with a zero-G spacesuit strip show in Fonda's shag-carpeted space capsule, and then she fights off angry dolls in her ripped stockings. Plus she hooks up with a hunky space angel.
Money shot: Duran Duran puts Barbarella into his sexomatic Excessive Machine, only to have her burn it out with her over-the-top tantric energy.

Flesh Gordon (1974). A crazy pastiche of the 1930s Flash Gordon serials, featuring Flesh and his sidekick Dale Ardor. The Emperor Wang bombards the Earth with a sex ray from planet Porno and it turns everybody into a sex fiend. This is somehow a problem. Lesbian queens in black swan spaceships, bearded men with pasties, penisaurs, bearded men with drag queen makeup, sex robots... The whole thing is intensely campy, even by 70s porn standards, and feels like Rocky Horror with more nudity and less singing. And yet it features special effects by people who went on to work on the Star Trek and Star Wars movies.
Money shot: A giant claymation monster, voiced by Craig T. Nelson from Coach, grabs Dale and carries her up a wall like King Kong. Flash has to battle the lumpy creature to save his hot sidekick. Here's the trailer:

Latex and Shock (1995). Probably Michael Ninn's most famous porn films, Latex and its sequel try for a "cyberpunk" aesthetic without actually comprehending cyberpunk. But that's okay, because the actual plot about a psychotic telepath imprisoned in a future dystopia is weird enough on its own. Malcolm Stevens has the ability to read people's thoughts, and uses it to discover their sexual fantasies. (Instead of getting rich, or escaping from his asylum.)
Money shot: In the second film, a female therapist tries to use shock treatment to cure Stevens, but her assistant gets drawn into a telepathic nightmare where she's trapped with two sexy gargoyles.

Cyberella: Forbidden Passions (1996). It's just your standard-issue cyberpunk redemption-through-sex afterlife story. Mara is a famous virtual reality designer, until she dies in a fire while plugged in to VR. Instead of going to the afterlife, her soul gets trapped in cyberspace, where she meets God. And God tells her to go into other people's VR worlds and have sex with them, until she transcends this plane of existence. Yes, it's that great.
Money shot: Cyberella enters someone's cracked copy of Mac Paint and they have paint-splashing VR sex.

Orgazmo (1998). A naive Mormon missionary gets drawn into doing porn and portrays a superhero named Orgazmo, who wields a ray that causes people to climax in this film by Trey (South Park) Stone. And then, when Joe Young decides to fight back against the sleazy film producer who exploited him, he suddenly finds that he can wield the power of Orgazmo for real.
Money shot: Orgazmo flying-kicks real porn star Ron Jeremy, who explodes into little pieces... only to come back a few minutes later.

Rod Steele 0014 and The Ultimate Attraction (2000-2002). Horror auteur Rolfe Kanefsky has a sideline in scifi soft-core porn movies, which often air late at night on premium cable and then come out on "unrated" DVDs. (He also wrote the totally bizarre Emanuelle vs. Dracula.) Both of these films involve a "clicker" that can increase the horniness level of anyone you point it at, ripped off from Manara's Click. In Steele, a James Bond parody loses track of his arousal-causing gadget and it creates mayhem. In Attraction, a mom-and-pop gym's staff uses the device to save the gym from a gym mogul who wants to buy them out. Really.
Money shot: In Attraction, it turns out the clicker doesn't just increase your arousal, it can transform your body as well. Here, a dorky guy uses the clicker to turn his gym coworker into a supermodel: