one's heart misses a beat

(one's) heart misses a beat

One feels a flutter in one's chest or stomach from fear, nervousness, or excitement. My heart missed a beat when I saw that the doctor was calling with the results from the test. I swear, my heart missed a beat the first time I saw my wife. My heart misses a beat every time I'm called into my boss's office.
See also: beat, heart, miss
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

one's heart misses a beat

 and one's heart skips a beat
Fig. one's heart flutters or palpitates; one has a strong emotional reaction. Whenever I'm near you, my heart skips a beat. When the racehorse fell, my heart missed a beat.
See also: beat, heart, miss
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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