For those still in school, this is the final day of summer vacation. It's like the Sunday feeling, but 100 fold. Usually consists of sitting around in your pajamas, reminiscing about the summer, insomnia, and a general feeling of the blues that summer is over. Probably the worst day of the year. May not always fall on a Sunday, but it's the same feeling.
After the excitement of summer break, all students must face Ultimate Sunday, the worst day of the year.