A compulsive and obsessive disorder where one is thoroughly engrossed with the song "Friday" by Rebecca Black. Symptoms may include singing the song on a Friday, watching the video on Youtube more than once, or putting a "like" on the song itself. Altogether dangerous and should be treated with a shot of reality that no one gives a crap about a song about a day of the week.

When you eat dirt for the first time and leave your family to build a shack in the woods