- 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."
- Ironically, 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!!
- Ascended Fanboy: Prior to joining in 1997, vocalist Corey Taylor attended the very first Slipknot performance, and recalls being "mesmerized" by their music.
- 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.
- Creative Differences: One of the reasons behind Jordisons departure.
- Fan Community Nickname: 'Maggots'.
- Fandom Nod: The song "Pulse of the Maggots".
- Hey, It's That Guy!: Corey has appeared on several other metal bands' tracks. You can hear his distinct voice on Soulfly's "Jumpdafuckup", Biohazard's "Domination", Apocalyptica's "I'm Not Jesus", Damageplan's "Fuck You", and on Steel Panther's "Death to All but Metal", "Asian Hooker", and "Eyes of a Panther".
- Meanwhile, Thomson can be heard delivering a guest lead on Malevolent Creation's "Deliver My Enemy". This was primarily as a favor to Dave Culross, who was in Malevolent Creation at the time and is known for being very good friends with Thomson.
- 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.
- 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.