What does it mean if a motorcycle's turn signals are flashing rapidly?

When a motorcycle's turn signals are flashing rapidly, it typically indicates that one of the bulbs is likely burned out. This faster flashing rate is a signal designed to alert the rider that there is an issue with the turn signal system. The motorcycle uses this visual cue because it relies on the proper functioning of the signals to communicate intentions to other road users. A burned-out bulb disrupts the normal electrical flow, causing the remaining functioning bulb to flash more quickly as a warning.

Understanding this is crucial for motorcycle safety, as functioning turn signals are essential for signaling lane changes and turns to other drivers. Other choices do not accurately describe the specific meaning of rapid flashing — slowing down or being in danger does not directly relate to the functionality of the signals, and while it might suggest a lane change is intended, it does not convey the malfunction indicated by rapid flashing.