There are lots of things you don't learn at school. I don't want to be mean or something, but... <img src="/ubbthreads/images/graemlins/evilgrin1.gif" alt="" />
Back on topic; I chose that nickname for several reasons. La fille = the girl in French. I often talk about myself using the 3rd person, refering to "the girl" (especially when refering to silly/dumb/distracted-Me). Also, I found that it does an original, anonymous nickname.