planksexual Share definition Flag 'planksexual' refers to someone who is attracted to members of the opposite gender who are also homosexual. "Bro i think im planksexual" "so THAT's why you're so intrested in lesbians!" planksexual by pyke-11 April 23, 2025 0 0 Get merch Get the planksexual mug. Buy Now — $32.95 See more merch