DJitis
d·j·i·tis dee-jay-ahy-tis - simply means inflammation of a disc jockey's head. Just learning to beatmatch rarely causes this disorder. Onset DJitis generally occurs after he/she has performed live at either a party, club, or festival. Females with DJosis tend to perpetuate this problem. DJitis and DJosis are commonly found in the same circles of people and both are considered extremely contagious.
-DJ Douchebag contracted DJitis and can only spin at outdoor festivals now because his head won't fit through the door of most clubs.