qiāo​qiao​huà

private talk

悄悄话 (悄悄話) qiāo​qiao​huà
private talk noun
Quiet, confidential words or secrets shared in private.

The two good friends hid in the room and whispered to each other.

sweet nothings noun
Romantic or intimate whispers exchanged between lovers.

The couple strolled under the moonlight, whispering sweet nothings to each other.

Frequency

Movie subtitles
1.61 per million appears in 1% of films
Written text
0.817 per million

Sources

Definitions
CC-CEDICT