1 definition by Jackdisease survivor
A terrible disease which makes the victim appear 30 or more years older in appearance than they actually are in numerical age. The name comes form the 1996 Robin Williams Film ``Jack``There is no known cure, although smoking at least 3-4 large marijuana joints per week has emerged as a well documented preventative measure.
My friend`s 22 year old girlfriend appears to be in her sixties due to an ungodly case of Jack disease.
by Jackdisease survivor January 4, 2011