fairy woman

1: An imaginary girlfriend who is a construct of a young man's imagination, especially fantasy nerds. A variation of this is space woman, where a sci-fi geek will invent a girlfriend that does not exist anywhere but in their head. 2: The alternate spelling, "faerie woman" is used to describe a female geek or nerd who knows a lot about the mythology of the Celts and or the British Isles. The inference is that she knows too much about Faeries to be a genuine human.