Originally Posted by ThatGirlInGray
Not "anything". The use of the term "unicorn" is because those couples tend to be looking for something rare, perhaps even non-existent: a bisexual person who can be in an equal relationship with both halves of a couple.
Um...no. A unicorn is the mythical, hot, bi babe who's just waiting to jump into a polyfi triad with a couple and make everything shiny and spectacular for them. The term actually arises in reference to unicorn hunters--those couples seeking the mythical unicorn.
Yes, the term has a meaning. Yes, that meaning is specific to gender.
If you wish to stretch the metaphor to also indict a couple seeking a hot, bi male, then you can reference any number of mythical beasts that are posited to be male. The thing is, it's really a waste of time to try to point to a mythical creature--especially as they exist largely only in the minds of the hunters. To use the metaphor as intended, you reference the hunters and don't attempt to identify anybody in particular as the prey....
So, OP, I wouldn't be so quick to jump on terms that are new to you quite so quickly. You're not a unicorn, nor do I think you really want to be part of that particular metaphorical situation, because that would mean any couple approaching you would have some really dysfunctional expectations.