Usually found on obese women at state fairs. You can usually spot them sucking down a corn dog or funnel cake. The Kansas City Titty is when the lady is soo fat that her breasts (usually bra-less) are sagging down like some large disgusting flapjacks on her fat gut.
That fat chick will never be able to ride on the scrambler, the carnie will not be able to shut the gate because her "Kansas City Titty" will be in the way.
I had to leave the Wal-mart check out aisle before i threw up because there were too many Kansas City Titty's in line.