The process by which a non-bench object/person is turned into a bench, such as a group of people sitting on someone thus turning it into a bench, the person is then said to have been benchified.
This can sometimes be seen as a mild form of bullying if one person is benchified frequently. However many see it as a sport, or just a pass time activity. Frequent benchifiers will often exchange stories about the best objects to benchify.
Person 1- Why are you all sitting on me?
Person 2- Do you not understand benchification, there wasn't anywhere to sit so we benchified you.