A game of 2 or more players (usually of the same sex) where colours are used to code the sexual attraction (fuckability) of a member of the opposite sex.
Red = Would not bang or poke on Facebook or with someone else's bargepole. Run the FUCK away.
Yellow = "Take her out for a seafood dinner and never call her again". Do-able but after alcohol consumption.
Blue = Acceptable - individuals you are actually attracted to.
Black = Would definitely 'bang'.
UV = Fucking insane. Would resort in multiple pregnancies.
Darrell: "Dude, what you reckon to that girl over there on the Big Bang Scale?"
Josh: "She's not quite a blue, so yellow!"
Darrell: "So harsh man! I'd easily say she's a blue!"