To dream of a cartoon represents a situation in your life that you are not concerned with taking seriously. Situations where you may be making fun of someone for being a loser.
Negatively, a cartoon may be a sign that you are overlooking the importance of something or not taking something as serious as you should.
Alternatively, famous cartoon characters may reflect a certain type of feeling, characteristic, or behavior based on the one thing that stands out the most about that cartoon character to you.
People who take hallucinogenic drugs often report seeing cartoon hallucinations or seeing the world turn into a cartoon. This may reflect their perception that taking these drugs is not a big deal or poses to danger.
Dreams when examined closely often appear to us in the form of cartoons. This may be a symbol from God or the “higher-self” source of dreams that we don’t take our dreams seriously enough.