Filth Biscuit is written by Allen White, and utilizes public domain work for its source material, a long list of Golden Age comics for which copyright has lapsed. Every effort is made to keep the material in its original form, complete with aged, faded pages. The works are published as issues complete with cover art, and stories are bracketed by altered comic book advertisements.
The humor ranges from puerile to political, from absurdist to whimsical, and is distinctly adult in flavor.
The webcomic went live on October 1, 2015.
This series shows examples of:
- Ambiguously Gay: The superhero Cat-Man, whose fastidious, metrosexual habits and constant but inadvertent sexual innuendo lead others to think he's gay, when his actual preferences are unclear.
- Deconstructive Parody: Robin Hood is recast as an utter douchebag in "Rob Ho and His Merry Bros".
- Fractured Fairy Tale: In A Punch in the Head, a whimsical story about a mischievous puppet and his creator is subverted into a story about an amoral sociopath and his sadistic master.
- The Social Darwinist: Lucy LeDarc, the protagonist of "I Pwned My Love" sees others as obstacles or pawns in her struggle to to claw her way up from the gutter — specifically her childhood friend, incredibly loyal but dim-witted boxer Mick the Rock. Her philosophy, as she explains it to Mick, is pure Social Darwinism; which suits her, since she's also a textbook psychopath.
- Super Zeroes: The inherently silly "Cat-Man" is made much more cat-like than in the original comic, with powers such as napping and licking himself clean.
- Well-Intentioned Extremist: The titular heroine of "Red Kate" turns a western town upside-down in her pursuit of an egalitarian, socialist paradise.