“Spit it Out” was the first song that Slipknot wrote with Corey Taylor. It is one of the band’s best known songs due to their live interaction with the crowd (this has been dubbed “The Crazy Test” and “Jump The Fuck Up”) . It also features Taylor rapping unlike the majority of Slipknot’s other tracks. In addition to being included on Antennas from Hell and 9.0: Live, it has also appeared on every video release by the band.

There are a number of alternate studio versions as well. The 10th Anniversary Edition of the debut included two remixes (the “Hyper Version” and the “Stamp You Out Mix”) and a live version recorded at Dynamo Festival 2000. The pre-album demo also included a rougher version of the song.

According to Joel McIver’s book Slipknot Unmasked:

it was allegedly written in response to the growing rivalry between two Central Iowan radio stations (KAZR and KKDM). Slipknot were now Des Moines' leading band, and because they were allied to (KKDM), KAZR allegedly resented this, attempting to pit (them) against (local band 35'‘ Mudder).

In the aftermath, amongst other incidents, Slipknot were removed from a concert in Chicago supporting Anthrax.