heart skips a beat: o que isso significa?

I was listening to the radio when the speaker said he was very surprised when he found out a very famous actress was following him on Twitter. The way he described his surprise was very interesting. Here's what he said: When I saw her following me on Twitter, my heart skipped a beat.

When you say your heart skipped a beat, it means you've been suddenly surprise, frightened or excited. So the speaker from that radio station was caught by surprise when he saw the famous actor following him on Twitter. One of these day, when my aunt opened the door to go into my house, my dog stormed out of the house through the little gap of the door after another dog in the middle of the road and was almost run over. My aunt's heart skipped a beat at that moment. He thought the dog was dead since it went under a car in movement, but it came out fine because the dog is small. That's it for today. Take care!