Housemate Roulette
A game of chance when moving into a new house or halls (e.g: into university accommodation or college dorms) and not knowing anyone that you will be living with.. and just hoping you get lucky with your house/flat mates.
A male student on a floor with a higher ratio of boys to girls = Losing housemate roulette
A male student on a floor with a higher ratio of girls to boys = Winning housemate roulette
A male student on a floor with a higher ratio of girls to boys = Winning housemate roulette