Scat play
From wipipedia.org
Scat play is play involving feces. People with a scat fetish (coprophilia) enjoy from the sight, scent or feel of faeces. They may smear faeces on themselves or others, defecate on someone (hard play), watch a person defecate, or even eat faeces (Coprophagia).
This fetish is often linked to diaper fetish.
Scat fisting
Scat fisting is fistfucking a dirty asshole, where the scene is pulling shit out of the victim's butt.
