one's heart in one's mouth
01
an intense feeling of suspense, fear, or nervousness
![{one's} [heart] in {one's} mouth definition and meaning](https://cdn.langeek.co/photo/42836/original/?type=jpeg "{one's} [heart] in {one's} mouth definition and meaning")
Idiom
例
Her heart is in her mouth as she steps onto the stage to deliver her first solo performance.
They always have their hearts in their mouths when watching a horror movie, eagerly anticipating the next scare.
