1 definition by Enlightened Master
A prison baby is when a gay male in the prison system withholds their bowel movements, and all anal ejacuations from their partners in for a month. After a month has passed the male inmate will finally pass the months build up of cum, and feces. The object is to give the feeling of birth, and can make the gay prison inmate the feeling of motherhood. Some reports have stated that they've seen prison babies the size of a football.
James and John have been in love and in prison together for a few years. They wanted to start a family so James and John decided to have a prison baby.
by Enlightened Master June 11, 2014