Any teenage or young adult male who manages to fuck up his life and/or future
prospects despite having every intellectual, social, parental, and economic advantage for success in his favor. Usually, but not limited to, young white males. Most likely
will be interested in: metal music,
skateboarding, smoking, marijuana, profanity, "chilling", and mooching off others. The natural habitat of a Fuckboi is usually his
parents couch.
"We'd love to go on that retirement
cruise, but we can't afford it because our 25
year old Fuckboi can't keep a job"