If you're talking about a typical example of something, call it the epitome. The cartoon character Garfield is the epitome of the lazy, food-obsessed cat.
Coming to us from Greek through Latin, epitome refers to something that is the ultimate representative of its class. Are you the epitome of the hard-working student or do you believe in study in moderation? Make sure you pronounce epitome with the accent on the second syllable (uh-PIH-tuh-mee).