Pig Play involves adopting a pig persona, which some participants approach as a companion-animal role and others as a role emphasising surrender, appetite, humiliation or filth-play registers. The intensity ranges from affectionate porcine personas to scenes charged with consensual degradation.

Pig imagery has a long history in fetish and Leather culture, and Pig Play emerged as a distinct animal-role expression alongside Puppy and Pony traditions.

Communities differ significantly on how Pig Play is expressed. Some treat it as ordinary Petplay; others frame it primarily through humiliation or degradation, requiring careful negotiation.