heart skip a beat

[heart skip a beat] or [heart miss a beat] 1. The heart leaves outor seems to leave out a beat; the heart beats hard or leaps fromexcitement or strong feeling. - Often considered trite.

When Paulsaw the bear standing in front of him, his heart skipped a beat.

2.To be startled or excited from surprise, joy. or fright.

When Lindawas told that she had won, her heart missed a beat.