Carmudgeon
A carmudgeon is a grumpy, cantankerous old man.
Frank Barone would be aptly described as a Carmudgeon.
Carmudgeon
A bad tempered driver that usually calls other drivers to acquire road rage. Usually travels slow the fast lane.
After several seconds of missed opportunities, I began to pass the slow car in the right lane when they refused to move into the right lane themselves. That freaking carmudgeon began to speed up and shaking his crusty old fist at me. I cut him off leaving him in my dust.