 Crimping (which involves placing your thumb over your pointer finger) is often used as the way to refer to an edge as a "crimp", and there are many ways to better describe an edge- microcrimper (smallest), slopey crimper, big crimper, bad crimper, good crimper, Fred Nicole crimper (microcrimper), juggy crimper.The picture to the right shows a person using a flex grip on an edge.Though the edge is being referred to as a "crimp" in this case, the climber is not actually crimping on the hold.