Any driver, elderly or not, who exhibits driving traits such as not driving at least the speed limit, stopping at railroad tracks, not turning right on red, driving the speed limit in the left lane of a highway, being unable to navigate a roundabout, or otherwise causing unnecessary delays for other drivers. However, it is debatable if a Grandpa Driver is worse than a Dick Driver.
I was late to work today because some GrandpaDriver went 20 in a 45 for five miles.
Basically means, just do it. Just go. When someone is taking far too long and holding up your life for no known reason, you would say this to them. When sitting in the car, and waiting for another person who is not yet in the car and you just want to go.
Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".