- Kerry King of Slayer once said in a Guitar World interview that "Corey Taylor is the best singer on the planet. He believes every fuckin' breath."
- Fittingly, while doing the song "Eyeless", Clown slammed his eye into the microphone stand.
- Approval of God: In 2011, a YouTube musician mashed up "Psychosocial" with... Justin Bieber's "Baby." Corey Taylor LOVED IT!!
- 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.
- Black Sheep Hit: "Snuff" from All Hope Is Gone is a slow, mournful ballad that sounds very different from Slipknot's usual stuff. It went on to become Slipknot's most successful single ever, reaching number 2 on the Billboard Mainstream Rock Tracks chart.
- Colbert Bump: For "Psychosocial" after "Psychosocial Baby" happened.
- Creator Backlash: 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. 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. Ruben also didn't spend a lot of time with the band, as he was juggling several projects at once.
- Creative Differences: One of the reasons behind Jordisons departure.
- Fan Community Nickname: 'Maggots'.
- Fandom Nod: The song "Pulse of the Maggots".
- 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.
- One of Us: Werewolf: The Apocalypse served as the basis for the lyrics of Mate. Feed. Kill. Repeat. Sid Wilson is a huge fan of the Transformers(his DJ name is actually DJ Starscream), and has several Transformers tattoos(including the Autobot and Decepticon insignias on the backs of his hands). Thomson loves video games, and Taylor is a huge Doctor Who fan, and was then hired to voice the screams of the Series 9 monster The Fisher King, which included getting to go to Cardiff and tour the set during filming.
- Promoted Fanboy: Prior to joining in 1997, vocalist Corey Taylor attended the very first Slipknot performance, and recalls being "mesmerized" by their music.
- The Pete Best: Anders Coselfini, Donnie Steele, Josh Brainard and Greg "Cuddles" Welts.
- 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!"
- Someone says "Take that, motherfucker!" at the end of "Eeyore", along with some unintelligible yelling.