To flout is to scorn or show contempt for. "I flout the law and the concept of civilian safety by making a concerted effort to jaywalk every time I cross a street."
Oddly enough, when flout came into existence in the 1550s, it had a much different sense to it than it does now; it's believed that it evolved from the Middle English flowten, “to play the flute." These days, the verb flout means "to scorn," as in to scorn a law, person, or social norm by defying it. As a noun, it is a contemptuous remark or insult. Wrote William Shakespeare, “Flout 'em, and scout 'em; and scout 'em and flout 'em; Thought is free.”