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1. An elusive hiding place used for smuggling illegal substances into "the big house".

2. Anus
"No I don't have any weapons...oh wait.....it's in my prison pocket."
by Garret_ September 17, 2008
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2
The place on one's person (anus) where you would smuggle items in and out of prison...
my baby's mama was able to sneak me 4 packs of smokes and a connect 4 game pass the gaurds by using her ample sized prison pocket
by jmgiggity September 21, 2011
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4
a genital orifice when used for smuggling of contraband ; for females, either the vagina or anus is used, while obviously just the sphincter option is available for men.
just stuff this sack in your prison pocket before you go through security
by ubermilf August 30, 2016
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5
a genital orifice when used for smuggling of contraband ; for females, either the vagina or anus is used, while obviously just the sphincter option is available for men.
just stuff this sack in your prison pocket before you go through security
by ubermilf August 30, 2016
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6
a genital orifice when used for smuggling of contraband ; for females, either the vagina or anus is used, while obviously just the sphincter option is available for men.
just stuff this sack in your prison pocket before you go through security
by ubermilf August 31, 2016
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7
a genital orifice when used for smuggling of contraband ; for females, either the vagina or anus is used, while obviously just the sphincter option is available for men.
just stuff this sack in your prison pocket before you go through security
by ubermilf August 31, 2016
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