Across the room a young man with curly red hair slapped his forehead.

Then he slapped his forehead, returned to the chair, and picked up the limb.

Roman slapped his forehead as he realized how stupid he'd been.

He slaps her forehead, and she crumples to the ground.

He paused, thought for a moment and slapped his forehead.

I slapped my forehead with the deck of cards and put them back into the box.

The professor slapped his forehead again for good measure.

He started to walk away, then slapped his forehead and spun around.

A thought struck him so hard he actually slapped his forehead.

The leader slapped his forehead and said, 'But what happening?