in the famous movie Breakfast at Tiffany's Audrey Hepburns character discirbes them as a horrible thing there like the blues only the blues is for when your sad
the mean reds are for when you scared and you dont know what your scared of...
Holly Golightly: You know those days when you get the mean reds?
Paul Varjak: The mean reds, you mean like the blues?
Holly Golightly: No. The blues are because you're getting fat and maybe it's been raining too long, you're just sad that's all. The mean reds are horrible. Suddenly you're afraid and you don't know what you're afraid of. Do you ever get that feeling?
Paul Varjak: Sure.
Holly Golightly: Well, when I get it the only thing that does any good is to jump in a cab and go to Tiffany's. Calms me down right away. The quietness and the proud look of it; nothing very bad could happen to you there. If I could find a real-life place that'd make me feel like Tiffany's, then - then I'd buy some furniture and give the cat a name!