knuckle cracking

knuckle cracking

Knuckle cracking is a common behavior enjoyed by many. It can become a habit or a way to deal with nervous energy; some describe it as a way to "release tension." For some, it’s simply an annoying thing that other people do. --health.harvard.edu

cal. 195 (social impact)

Its essential feature is that it is annoying to others and presumably not harmful.

Knuckle cracking: Annoying and harmful, or just annoying? - Harvard Health

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