Otaku girls who like to imagine themselves in straight relationships with fictional boys rather than shipping them with other boys tend to be called 'yumejoshi' ('dreamer/delusional girl', derived from 'yume shousetsu', a Japanese term for a type of Self-Insert Fic) instead to clear up the confusion. Because of how commonly this archetype is shown in Otaku media when they want to have fangirls show up, the term is often misused to mean 'female Otaku'. The Japanese name for Yaoi Fangirl is fujoshi (a pun that translates loosely as 'rotten girl'). You can pretty much assume that all yaoi fangirls think Guy-on-Guy Is Hot, but not all women who think Guy-on-Guy Is Hot are yaoi fangirls. The main difference between a Yaoi Fangirl and Guy-on-Guy Is Hot is that the former are interested in homoromantic/homoerotic fiction and/or fanfiction and/or Shipping, whereas the latter enjoy watching men make out.
A female otaku who enjoys anime and manga featuring handsome men engaged in homoerotic relationships.