A severe condition that results in the noob gland becoming gradually inflamed to the point by which exposure to the individual (whom has nobitis), can cause yourself to contract the disease. Caution must be taken when encountering an individual with noobitis, as one may become a noob themself. A terrible, terrible fate.
Bob: "Oii, you hear about Paul?"
John: "nah, what happened?"
Bob: "They wanted to take him to the hospital, supposebly he is suffering from noobitis. The doctor told me not to visit otherwise I'd land up there too"
John: "tough.. I hear that disease can be fatal.. What a poor, poor noob"