pinky promise

Noun

informal

(informal) A promise made by entwining one's pinky finger with another person's.

Japanese Meaning

小指を絡め合うことで交わされる、非公式な約束

They sealed their friendship with a pinky promise.

彼らは小指を絡ませて交わす約束で友情を固めた。

Sense（1）

(informal) A promise made by entwining one's pinky finger with another person's.

pinky promises

（ plural ）