your game ratio is the expression of the theory of game, based on those you date in ratio to your income. the equation: take the average hotness of the people you've dated and put it in proportion to your yearly income. for example, the last 3 chicks/dudes you were with had an average (based on looks/personality etc.) rating of 80. your yearly income is $40,000 so your ratio is pretty good. the assumption is that if you make less money, it takes more game to bag hotter subjects. if you already ballin', your game has to be extra to up your ratio - if you make $100,000 a year you better be hitting straight diiiiimes all the time.
"who's that hot chick?"
"oh you tryin' to raise your game ratio?"