footfucker

plural footfuckers

1. slangvulgarSomeone who sexually penetrates with their foot or toe in a fashion similar to fisting.

   Then there was Pollux, who was a footfucker from way back but who could also be a brutal mouthfucker, pounding my warm wet cave like a force of nature—a hammering ocean or blinding rain that could only be endured.

   2010, Wayne Courtois, My Name Is Rand, page 134