Definition of "clenching" [clenching]

• Present participle of clench. (verb)

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• ""She was kinda mumbling to me, kind of clenching down on her teeth a little bit and kind of opening her eyes a little back and forth and taking like gasping respirations," said Sandigo."
• "Attack Signals: When somebody is about to attack, they give visual signal such as clenching of fists ready to strike and lowering and spreading of the body for stability."
• "“They say we need to thump our fists,” he once told associates, clenching his hand to demonstrate."