Human form of mad cow disease, a brain disease that is incurable and invariably fatal
Symptom is rapidly progressive dementia, leading to memory loss, personality changes and hallucinations
A: What's the cause of CJD?
B: Eating a cow with mad-cow disease.
a disease in which the victim misses a day of school when a project is due.
guy student: hey, why werent you here for our engineering presentation?
girl student: oh sorry, i came up with a case of cjd