The expression like a ton of bricks means a crushing weight with being hit by an actual ton of bricks hurt if it happened on the moon?

If being hit by a ton of bricks on the moon were even possible, it would not hurt as much as it would on Earth. This is because the moon has only about 1/6th the gravity of Earth. Therefore, objects would weigh significantly less and exert lesser force when they land on something or someone. The impact would still cause damage, but it would not have the same crushing weight and force as it would on Earth.