But when it hit the back of the rim, my heart just dropped.

My heart dropped like a stone in a well.

He took in their earnest faces, and his heart dropped.

I picked up the phone and it was him; that's when my heart dropped.

His heart dropped at the thought of what he was letting happen.

Tony's heart dropped three inches; he knew his own limitations.

My heart dropped as Morton started to look over his shoulder.

My heart must have dropped right down through the upholstery.

Even though I work in theatre and know that everything was completely safe, my heart still dropped.

"I just can't," she answered, and my heart dropped a few feet.