1. To fall or move from on top of someone or something in a rolling motion, on wheels, or atop or in something with wheels on it. The family rolled off of the cliff after their car hit a patch of ice on the road. Don't put that ornament up there—I don't want it to roll off of the shelf and break. The policeman rolled off of the suspect once the weapon was secured by another officer.

2. To cause someone or something to fall or move from on top of someone or something in a rolling motion, on wheels, or atop or in something with wheels on it. In this usage, a noun or pronoun is used between "roll" and "off." Paramedics rolled the large rock off of the hiker and administered first aid. He went up and rolled the various balls off the roof that the kids had lost over the summer. He was too heavy to lift, so we had to just roll him off of the carpet.