Wiktionary
snapping one's fingers
vb. (present participle of snap one's fingers English)
Usage examples of "snapping one's fingers".
Reviewing in memory what Sugaiguntung had just said, he was struck by the curious turn of phrase he had employed, and a relay closed in that part of his mind where he stored tiny details noted long ago, about such matters as not snapping one's fingers in Yatakang.