have heart in mouth

Also found in: Dictionary, Thesaurus, Medical, Legal, Encyclopedia.

have one's heart in one's mouth

Fig. to feel strongly emotional about someone or something. (See also one's heart is in one's mouth.) I had my heart in my mouth when I heard the national anthem.
See also: have, heart, mouth

have (one's) heart in (one's) mouth

To be extremely frightened or anxious.
See also: have, heart, mouth