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2.
Flavored gelatin made by inmates in a prison kitchen to be consumed by inmates in the food line. While the flavored gelatin is still in the kitchen, not too firm yet also warm, an inmate cuts a small hole in the gelatin and has sex with it in the serving tray, then smooths over the damage. Once cooled, the tray of flavored gelatin is taken to the food line and served.
Don't eat the gelatin in prison because it might be jailhouse jello.
by Victor Vocab December 03, 2012
 
1.
Jello made by inmates in the jailhouse kitchen to be consumed by inmates at the food line. While the jello is still in the kitchen, not too firm yet also warm, an inmate has sex with it, then smooths over the damage Once cooled, the jello tray is taken to the food line.
Don't eat the gelatin in prison. It could be jailhouse jello.
by Victor Vocab November 29, 2012