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

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

To feel very nervous or anxious. I had my heart in my mouth as I waited for the ambulance to arrive.
See also: have, heart, mouth
Farlex Dictionary of Idioms.

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
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

heart in one's mouth, have one's

Be extremely frightened or anxious, as in When the plane was about to take off, my heart was in my mouth. This usage alludes to the heart beating so violently that it appears to leap upward. [Mid-1500s]
See also: have, heart
The American Heritage® Dictionary of Idioms by Christine Ammer.

have your heart in your mouth

be greatly alarmed or apprehensive.
See also: have, heart, mouth
Farlex Partner Idioms Dictionary

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

To be extremely frightened or anxious.
See also: have, heart, mouth
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • have heart in mouth
  • have your heart in your mouth
  • heart in one's mouth, have one's
  • (one's) heart is in (one's) boots
  • lose heart to
  • lose one's hear to
  • lose your heart
  • lose (one's) heart to (someone)
  • have a heart
  • lose heart