Sentence:  The insult is one of the highest art forms. It is a form of minimalism, like the minimalism of an abstract artist. The one who insults is an <WSD>insultant</WSD> who, rather than use a canvas, uses another person. The <WSD>insultant</WSD> draws lines on a person to reduce them to the person they see and want others to see; and lines which they want the insulted one to feel. 
Meaning of the word marked with <WSD> tags:  One who delivers an insult.