[2][3] Polkadot Cadaver formed shortly after the breakup of Dog Fashion Disco in 2007.

Two Polkadot Cadaver demos were featured on the Dog Fashion Disco rarities album, Beating a Dead Horse to Death... Again in 2008.

[7][8] On July 17, 2012, the band uploaded a picture to their official Facebook page, announcing a new album to be released in 2013 and that fellow Maryland-based rock band Clutch's lead singer Neil Fallon is to appear on a track titled "Transistors of Mercy".

Former Dog Fashion Disco bassist Brian White replaced Dave Cullen for the tour and has stuck with the band since.

[12] The band began recording a Christmas EP in early September 2013, titled From Bethlehem to Oblivion.

In addition, Last Call in Jonestown has been released on colored vinyl in a limited run of 500 copies.

The 2007 debut album Purgatory Dance Party was re-recorded in 2020 and released by Razor To Wrist.