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百屌成才或百屌成材是論壇用語，出處是網民在論壇不斷激烈批評一些表現差劣的球員，有時候這些球員表現的確會有好轉或打「爭氣波」，這現象就是百屌成才。
及後有些網民眼見自己支持的球隊或球員表現不濟時，會主動發起百屌成才，望他們能改善表現。現時百屌成才已不限於球隊或球員，網民對任何東西均可發起百屌成才。