N: 1. One who through artifice or nature, intentionally or unintentionally, leaves his or her sexual orientation to the imagination.
N: 2. One who is attactive to members of both sexes, who knowingly or unknowingly encourages such an attraction, and whose sexual orientation is frustratingly ambiguous.
Note: Not to be confused with androgynous
Person 1: Jonas is such an ambigude.
Person 2: I know! How can a man know if he's got a chance?