Prisine 

Prison cuisine, aka the food prisoners make using borrowed goods and vending machine snacks.

Rob: When I was in jail for ten years, I became very good at making my own prisine.

Prisine by Mr. Goodbarr II February 6, 2009

PrisInman Presses

This is a strength exercise that was invented by a strong white inmate in Prison in Connecticut. It combines the art of the deep squat and as the lifter rises back to normal height, then strict presses the weight above his head and locks his arms out and holds it there. A true PrisInman squat is finished by yelling the phrase "welcome to prison" at the end of it...thus revealing your superiority to others in a confined area.
People who complete PrisInman Presses are also well known for their Prison behaviors such as grabbing a handful of dirt during a volleyball game in your left hand, awaiting another Inmate to set the ball for you, and then viciously spiking the ball in the face, scrotum, or chest of the opposing Inmate, then throwing the dirt in their face while yelling the phrase "welcome to prison". Usually it will be a Latin King member you are playing against, since the only things they do in Prison is steal, pick on weaker white people and play volleyball and complain while doing so...
The PrisInman press reflects a bigger picture of society, that just because you lost the game of life, does not mean that you cannot beat the fuck out of someone while doing time, and look damn good while doing so.
PrisInman presses can only be done by very strong people, usually white people, they are usually of the Aryan race and have blonde hair and blue eyes.

Holy Shit, did you see that white kid from D-Block PrisInman press 315 pounds, that was fucking amazing.

Hey, wanna do PrisInman presses with me today, I am working shoulders and traps.

How the fuck did PrisInman do that, I am not able to lift that weight because I am not strong or smart.

Arguing over a prisinman press is like getting a gold medal in the special olympics, even if you win, you are still retarted.

PrisInman Presses by PrisInman July 17, 2011

Social Prisoner 

A sincere, friendly prisoner who utilizes the time while incarcerated to develop and maintain positive and meaningful friendships.

A social prisoner establishes and maintains healthy friendships inside prison as well as outside. Often, social prisoners also make use of the time to learn skills and seek an education.

Social Prisoner by Lexicon reader November 4, 2011

prisoner of the moment

1) Someone who thinks recent results will lead to the same results in the long term.
2) Someone who is focusing on something that just happened rather than the big picture.

3) Someone who's focus is narrow, focusing on the short term rather than the long term.
4) Often used as another term for "Recency bias".

Billy complained that his favorite sports team's season was over after they lost a game several weeks ago, but he was just a prisoner of the moment because they actually ended up winning the Championship.

prisoner of the moment by Revel8 October 8, 2018

the prisoner’s dilemma 

When a person has been arrested and during their interrogation is wondering what to say based on their awareness of what the other witnesses may be saying.

So as Ambassador Gordon Sondland got some distance from his statements made weeks ago under oath, he began to experience the true depth and extent of the prisoner’s dilemma which of course led him to finally correct his testimony.

the prisoner’s dilemma by Dr Bunnygirl November 5, 2019

prisoner of fun 

That wild and crazy person who is trapped in an inescapable cycle of compulsive hilarity.

Gary had coined the phrase and would always be the progenitor of the prisoner of fun lifestyle.

prisoner of fun by Dr Bunnygirl March 13, 2019

Prisoner of the Present

1. A person whose entire worldview is shaped by current events, stumbling along from one crisis to another.
2. Someone without a historical perspective or hope for the future.
3. The mindset that causes "knee-jerk" reactions to almost any kind of social or economic change.
4. A state of perpetual panic about "the world today."

Larry says the U.S. economy will never recover no matter what happens in Washington -- he's a typical Prisoner of the Present.

Prisoner of the Present by Peter Kobs June 4, 2009