Only being attracted to anyone who looks like David Bowie, especially if this person loves David Bowie, dresses like David Bowie, or both. Women, gay men, and heterosexual men can all identify themselves as bowiesexual.
Girl: I love your platform shoes! I am bowiesexual, and you are totally hot.
Guy: I am too! You can't deny David Bowie's sexual allure. Wanna make out?
Girl: YES! Can I call you David?
A sexual position involving monkey bars where the girl wraps her legs around the money bars in a bowtie like manor. The male (whilst wearing spurs and a cowboy hat) stands on the ladder to the monkey bars.
Everything is backwards in Cincinatti... This sexual gesture involves the male subject to be "titty fucking" the female subject backwards. The female's view now reveals the male's rear end and right below it, his scrotum in the shape of a bow-tie, right where a bow-tie would normally rest.