指を鳴らす

Meaning

1. expv5s
   to snap one's fingers
2. expv5s
   to pop one's fingers; to crack one's knuckles

Example sentences

• 指を鳴らすのも、トムの悪い癖だよな。

  One of Tom's bad habits is cracking his knuckles.

• 指を鳴らすのはやめろ。

  Stop cracking your knuckles.