One's butthole, wherein which an individual can get away with smuggling small objects into restrictive places like prison or a concert venue without getting caught.
Josh: Bro, do you have the ganja?

Tim: Yeah, the security was super strict though...they patted me down top-to-bottom. Lucky for us I figured I'd put it in my jail pocket just to be safe.

Josh: Ewwwww dafuq nigga no wonder this weed smells like ass. *proceeds to vomit*

Tim: Fuggit bruh, yolo....blaze it! *proceeds to smoke a bowl of ass weed*
by JimboWales May 12, 2015
Get the jail pocket mug.