Aggressive drivers:

Virginia law defines aggressive driving as harassing, intimidating, injuring or obstructing another person while committing one or more traffic offenses. Aggressive drivers engage in high-risk behavior while taking out their frustrations on other motorists. They may do things like run stop signs and red lights, speed, tailgate, weave in and out of traffic, make improper and unsafe lane changes, or angrily honk, gesture, scream, or flash their lights.
DMV Writen Test