@HyperNeutrino English has no gendered words (like, say, Spanish). "girl" implies a female gender semantically, but has no grammatical gender, so it's perfectly fine to use it with "they".
(The teenagers from my neighborhood like to go down to the canyon behind my house and pick sage and smoke it. Since it's from the 'salvia' family, they expect it to have hallucinogenic properties, but it usually just lands them in the emergency room)
lol. obviously not. I think that falls under the heading of something the defender is hopelessly unable to guess. (Of course, I doubt anyone else can get it either, so it's somewhat moot.)