Author Existence Failure: In 2010, Paul Gray, #2 and bassist, died. He was one the creative brains behind the band, and in the wake of his death, the members of Slipknot questioned whether there would ever be a new album. Fortunately (for their fans, that is), in 2014, six years after their last album, Slipknot released .5: The Gray Chapter. Several songs on this album are about Paul Gray.
Big Name Fan: Thomson (along with Gray and Jordison) is the main death metal fan in the band, and the former is known to have an Immolation tattoo and has also expressed gratitude to the members of various bands for their influence on him (a good example being the time that he told Chris Pervelis of Internal Bleeding that there would not have been a Slipknot without Internal Bleeding), and touring death metal acts hitting Des Moines have a good shot at bumping into him.
Corey Taylor happens to be a big fan of The Nostalgia Critic and even had pictures taken with him at the studio. He is also a fan of QI, having appeared on the show. He's also a major Doctor Who fan, so much so that 1) there were rumors that Slipknot would perform the theme for the 2005 series and 2) Corey performed the Fisher King's scream in the final moments of the Twelfth Doctor story "Before the Flood."
Black Sheep Hit: "Snuff" from All Hope Is Gone is a slow, mournful ballad that sounds very different from Slipknot's usual stuff, and generally would have been far more at home in Stone Sour's catalog. It went on to become Slipknot's most successful single ever, reaching number 2 on the Billboard Mainstream Rock Tracks chart. They also have not played it live since 2012 and have no intention of bringing it back, though Corey Taylor has played it at solo appearances.
Colbert Bump: For "Psychosocial" after "Psychosocial Baby" happened. Then it happened again after "Psychosocial" was mashed up with "Fruit Salad", creating "Psychosalad". It's actually a pretty seamless mashup that quickly becomes an Ear Worm.
In the band's Google Autobiography, most of the members admit that they consider All Hope Is Gone to be their worst album, citing issues with their producer at the time, feeling that that were "playing it safe" with the sound, problems with getting all nine members together to record, and even Crahan saying he felt the name of the album was pretty bad because it foreshadowed Paul Gray's suicide. Nowadays, the only song to remain on setlists is its signature "Psychosocial", with the rest being dropped (aside from "Sulfur", which quietly crept back onto their setlists in 2019).
Taylor also isn't fond of Vol. 3 for similar reasons; the recording process was unpleasant due to inter-band tensions and Rick Rubin being "completely fucking useless," his attempts to expand his vocal range led to lots of results that he felt should have gone back to the drawing board, and his drinking problem at the time led to lots of bad (as far as he was concerned) vocal takes making onto the final product. Rubin also didn't spend a lot of time with the band, as he was juggling several projects at once; when he did appear, it usually was for less than an hour, and he would usually lay down, play a couple preproduction tracks, grunt out a few comments, and then leave. He and Corey also got into a heated argument over the chorus of "Before I Forget," which Ruben argued wasn't catchy enough but Corey refused to change in any way. Nonetheless, it did give birth to Signature Songs "Duality" and "Before I Forget", as well as various other fan favorites.
Creative Differences: One of the reasons behind Jordison's departure, although the biggest reason was due to the fact Jordison developed a condition that is slowly making him unable to play the drums. It's believed Jordison's firing was less of the creative differences (adding as well to Paul Gray's death affect on him) and more on not wanting him to overly stress his body out.
Fan Nickname: With the identity of Chris Fehn's replacement a mystery, fans started calling him either "Chrisn't" or variations on "Tortilla Man" due to his mask.
Genre-Killer: For nu metal, in a way. When the self-titled dropped in 1999, there was nothing else like it, and its sense of chaos and unhinged rage was very much an antithesis to what was becoming an increasingly safe and formulaic genre. They went from supporting to headlining tours over the course of a few months because anything placed over them invariably faced massive walkouts and playing to a fraction of the crowd that Slipknot would play to, and it quickly became apparent that while Slipknot may have gotten big because of nu metal, they had transcended the genre and quite simply did not need it past 2001. While most people will blame Limp Bizkit and the glut of formulaic third-tier acts for killing the genre, Slipknot also helped kill it by attracting a rabid, cult-like fanbase who often did not care about nu metal as a whole, and generally demonstrated that they were the only new act that stayed true to nu metal's original principles while everyone else was treading well-trodden ground.
Genre Relaunch: In many ways, Joey Jordison did this for extreme drumming styles. When Slipknot arrived on the scene, no one with any sort of mainstream reach (aside from Morbid Angel and maybeCannibal Corpse and Deicide) was playing at extremely high tempos and using blastbeats and extremely fast double kick rolls the way that Joey was, and Slipknot's popularity and influence gave that style of drumming mainstream cred. This, in turn, paved the way for bands like Shadows Fall, Lamb of God, All That Remains, Devildriver, and Bleeding Through to use extreme drumming styles in the 2000s, as well as creating the kind of environment that gave extreme bands a much better shot at achieving meaningful mainstream popularity (as Cannibal Corpse, Behemoth, The Black Dahlia Murder, Nile, Job for a Cowboy, and the entire deathcore scene would go on to do).
Keep Circulating the Tapes: Their demo album, Mate. Feed. Kill. Repeat., was limited to only 1,000 copies and is a sought-after rarity among fans. None of the band members even have a copy of the album anymore. Its legacy is kept alive by bootlegged CD's and MP3's.
The Merch: In perhaps one of the more ill-thought moves of their career, the band launched their own clothing line in 2008, titled Tattered and Torn after the song (a rather unfortunate name to be sure). Taking many cues from the Affliction brand, T&T doesn't explicitly specialize in Slipknot merch, but many designs. These are sold at HotTopic.
Old Shame: Mate. Feed. Kill. Repeat. has pretty much been disowned. And apparently, their unreleased second demo album Crowz never existed.note From a certain standpoint this is technically correct at least. "Crowz" is just a loose collection of demo tracks recorded around the period that both Corey and Anders were in the band, and the name comes from a band in-joke about one of the members at the time turning down a street on the way to the studio and seeing an unusually large number of crows.
Promoted Fanboy: Prior to joining in 1997, vocalist Corey Taylor attended the very first Slipknot performance, and recalls being "mesmerized" by their music.
Jay Weinberg went to a blind audition in L.A. one day in 2014 and discovered that he was 20 minutes away from jamming with a band he'd idolized for 15 years.
The Pete Best: Anders Coselfni, Donnie Steele, Josh Brainard and Greg "Cuddles" Welts.
Sleeper Hit: The self-titled, and, honestly, the band in general. As per Corey Taylor, they were the one band on Roadrunner's roster that wasn't expected to go anywhere; they were a bunch of broke, drunk, and stoned twentysomethings from a part of the US that no one cared about with an extremely aggressive, abrasive, and generally not mainstream-friendly style who were hoping to maybe clear 200,000 units (which, at the time, was the bare minimum needed to convince a major label that you were worth their time and money) and thought that Amen (whose debut was being mixed around the time that they were recording) was going to be the band that was going to blow up. Instead, they went platinum in less than a year, wound up getting pushed up to direct support on a tour with Coal Chamber just so people wouldn't leave halfway through the night after they got off, and became something pretty close to a household name by 2001. Oh, and Amen? They barely sold 15,000 copies in their first year with their Roadrunner debut (much to the chagrin of Corey Taylor, who genuinely loved the album and wanted them to get huge).
Throw It In!: At the start of "Get This", the engineer says "Gimme a scream, Corey." Corey obliges. At the end of the song, someone yells "Yeah!"
What Could Have Been: Thomson and Root apparently tracked at least a few solos on the self-titled and possibly Iowa as well, but they wound up getting cut from the final product.