Kermit's Razor
Named after Kermit the frog who was of course married to Miss Piggy, the principle of Kermit's Razor goes something like: If there are two girls in a dating app bio photo, it usually belongs to the fatter of the two.
Person 1: "There's two chicks in the tinder bio photos. I can't tell who the profile belongs to."
Person 2: "Kermit's Razor. Odds are it belongs to the larger of the two women."