It looked to her as if his head might crack in half if he ever smiled.

The man's head had cracked on the rock like a dropped egg.

He struck me hard across the mouth so that my head cracked back against the bathroom wall.

The guard fell, and his head cracked into a stone.

He had wanted a head or two to crack.

His head had cracked the ice on the river and was partially submerged.

Her head cracked against the hard wood floor, and everything went black.

The fellow's head cracked the hard dirt of the road.

The wind whipped him sideways, and his head cracked against the wall.

Her head cracked against something hard and she couldn't move her arms.