The official GemStone IV encyclopedia.
ROLL is a roleplaying verb. It also has some mechanical functionality and is used when something needs to be moved or when someone is on fire.
Roll (while standing):
roll You can't roll around if you're not lying down!
Roll (while lying):
You roll around on the ground. XXX rolls around on the ground.
Roll person: (while standing)
You try to roll XXX over, but she isn't lying down. XXX shoves futilely at you.
Roll person (while lying):
You roll XXX over. XXX rolls you over.