sexual identity encompassing all things not strictly hetero. May include gay, bi, queer, polysexual, dykey, faggy, gay-ish, gay-like, gay on the weekends, gay when drunk, and homosexual. Also may not.
Alot of people think Mary is a lesbian, but she had a boyfriend last year and a girlfriend the year before, last I knew, she was dating a non-gender identified polysexual. She identifies as non-heterosexual.