They rolled rocks to block up Mini's burrow, sealing her in.

Sometimes they roll great rocks down the mountain-sides, playing a desperate game of ball with each other.

"The Elstani could do a lot of damage even if they only rolled rocks down the hillsides."

The Elstani made faces back, and occasionally rolled rocks down the hills.

Maybe you better let me talk to my buddies out there before they roll rocks on top of this thing.

Douglas rolled rocks out of the way, and they scraped through.

And we waste time, rolling rocks, and making little cooking fires.

The gnomes rolled several large rocks up to the hull.

Then they would try to roll large rocks onto it, crushing it.

"You think that they'll just let us roll rocks at them and do nothing?"