On the cutting edge或 at the cutting edge 最早出现在五十年代，它的字面意思是锐器的锋利的部位，现在最通常的隐喻义是处在最前沿的位置。例如Ever since it outlawed public school segregation in 1954, the U.S. Supreme Court has been on the cutting edge of civil rights advances. (Time, 1988)
比如，bleeding edge通常描述有一定风险的新生事物，如可能带来经济灾难或只是昙花一现的新事物。下面的一段解释就可以反映出"风险"的意思 "Leading Edge or Bleeding Edge: Staying at the forefront of technological innovation without going overboard......Working on the edge of technological innovation can be a difficult balancing act" (Newport Communications, 1997)。Bleeding edge 大约在20年前在句子 "Environmental management is an organization that addresses change and manages that change so the DP community can be state of the art without being the 'bleeding edge'" (Computerworld, 1983) 第一次出现，如今通常用它来指电脑技术。
形容词edgy 也有 on the cutting edge的意思，尽管它的内涵是大胆创新("being innovative in a daring or discomfiting way")，不过它不像bleeding edge那样显得颇具风险。例如 "Crisp, edgy and sometimes startlingly raunchy style...the chuckles keep coming like poisoned darts." (Newsweek, 1999).
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