 The feature began as a one-time bit; while on the air, Leykis recalled a radio host he listened to as a child, who asked his listeners in New York apartments to flash their lights on and off and then to look outside to see how many neighbors were doing the same, as a way to gauge the audience size (Jean Shepherd).Leykis asked his listeners to do the same with their car headlights, and a few minutes later, jokingly suggested that women flash their breasts.A listener called in to report that he saw a woman flashing fellow drivers, and it became a regular feature of the show.