When a male with a foot fetish, usually of younger girls, takes pieces of paper and writes on them with black magic marker, making a sign. The signs usually pertains to requests such as "Put your feet on the dashboard" or "take off your shoes" or "You have nice feet". Other messages vary depending on the person's creativity and their taste. The male then puts these signs in their car. When driving, the male shows these signs to girls in other cars, most usually passengers. When the male shows the signs, the female will sometimes comply to the request.
I made a new copy of Foot Fetish Driving Signs because the first ones weren't as easy to read.