Choreography bit is a term used to describe a STEP or movement in a dance routine. It is usually a short sequence of movements that are repeated throughout the routine. The term is derived from the Greek words 'choros' meaning dance and 'graphein' meaning to write. A choreography bit can be as simple as a single STEP or as complex as a series of steps and movements. It is an important part of any dance routine and can help to create a unique and memorable performance.