Extreme or restrictive diet control enforced by a dominant on a submissive within the context of sadomasochism (S&M) or domination and submission (D&S) (a broad set of sexual proclivities often cumulatively referred to as "BDSM"). Depending on the couple, the practice may involve goals, deadlines, monitoring, and punishment. For it to be pleasurable to both sides, the sadorexic generally must be both submissive and masochistic.
"She, a submissive, wanted to be thinner. Her boyfriend, a dominant, gave her a diet regimen and was very strict with her, punishing mistakes along the way. This is called sadorexia."
by Sub Gal April 25, 2007