1 definition by Street-Walker A
A 50/50 is when you pay a prostitute to perform intercourse and follow it up with oral sex. Please note the order can be changed to suit the situation, or the patron.
As we drove down the street, my buddy yelled out the window at a known prostitute and asked "how much for a BJ and a Lay?". The prostitute replied "a 50/50 will run ya $35!".
by Street-Walker A June 24, 2010