it is a neologism used to describe a person who avoids sexual orientation labels such as heterosexual and homosexual. (via Wikipedia)
Thought some of you might be interested.
“Sex-positive activist writers and editors Carol Queen and Lawrence Schimel popularized the term by using it as the title of an anthology of essays published in 1997. In it, they describe pomosexuality as the ‘erotic reality beyond the boundaries of gender, separatism, and essentialist notions of sexual orientation’.”
this is brilliant, i think.