1. Discoloration in the area surrounding the eye(s) due to an accumulation of blood, as caused by periorbital ecchymosis (i.e., "black eye(s)"). A colloquial shortening of "raccoon eyes," likened to the black patches around the eyes of a raccoon. He had a pretty bad coon eye after the bully punched him in the face. I had coon eyes for several days after my car accident.

2. A discoloration immediately around—and especially under—the eye(s) due to the smearing of dark-colored makeup. A colloquial shortening of "raccoon eyes," likened to the black patches around the eyes of a raccoon. She wouldn't have such a problem with coon eyes if she didn't wear so much makeup to begin with! Whenever I cry, it causes my makeup to run and give me coon eyes.

3. A discoloration immediately around—and especially under—the eye(s) due to prolonged fatigue or lack of sleep. A colloquial shortening of "raccoon eyes," likened to the black patches around the eyes of a raccoon. I must not sleep very soundly because I always have these coon eyes when I wake up.