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.

Jack Disease by Jackdisease survivor January 5, 2011

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jack johnson

a musician whose songs are guaranteed to get the player laid, no matter what the circumstance. girls love him, guys love him...but girls REALLY love him. to all the men out there looking to get a girl really fast, pick up a guitar and learn some jack johnson, because it will get you some over and over and over and over again.

jack johnson

jack johnson by johnnycash32 May 24, 2011

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Jack Off January

As compensation for participanting in No Nut November, which is harder than you think, you can also participate in this event where you must nut every day in January. It’s certainly an easier challenge, it probably happens every day tbh... just follow it and you’re a good person.

Cisgender Male 1: What do you plan to do during January?
Cisgender Male 2: I’m going to do Jack Off January.

Jack Off January by jerrysanduski November 14, 2017

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stack n jack

One man lays on another man both facing up, the man on top reaches between his legs and jerk the bottom guy off.

Dustin and Logan stack n jack every Tuesday night.

stack n jack by thatsickdude December 13, 2014

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