knuckle tap編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看knuckle tapknuckle tap — 名詞名詞1. a greeting or sign of respect by tapping fists1.名詞釋義拳頭輕敲a greeting or sign of respect by tapping fists例句They exchanged a knuckle tap before the game.