knuckle-cracking

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UK

C2 高級
n. (c./u.)名詞 (可數/不可數)弄響指關節
The constant knuckle-cracking was starting to annoy everyone in the office.
adj.形容詞弄響指關節的
He had a knuckle-cracking habit that he couldn't seem to break.
adj.形容詞指關節爆裂的
The knuckle-cracking sound filled the silent room.
adj.形容詞有弄響指關節習慣的
His knuckle-cracking habit annoyed his colleagues.