heart misses a beat

somebody's heart misses/skips a beat

if someone's heart misses a beat, they suddenly feel so excited or frightened that their heart beats faster Ben walked into the room and her heart skipped a beat.

Common Names:

Name	Pronounced	Usage
Isolda	i-ZOL-də (English), i-SOL-də (English)	Arthurian Romance
Arrington	['æriŋtən]
ÁNgela	AHN-khe-lah	Spanish
Armo	AHR-mo	Finnish
Lauri	LOW-ree	Finnish
Keturah	ki-TOOR-ə (English), kee-TYOOR-ə (English)	Biblical