What is a classic wiper rod?

What does the classic wiper mean? Interpretation: the joke of the old driver. If the wiper is on when it doesn't rain, especially at the intersection, drive away quickly. It must be a novice driver who can't find the turn signal. You don't know where it's going, don't take it that way, it's easy to have an accident.

Source: summary of the old driver's trip, network paragraph.

Usage scenario: the name of the exclusive event.

Example: Be careful that it doesn't rain. You can't afford to drive the wiper car indiscriminately ~ ~ ~