Definition & Meaning of "mobile billboard"in English

What is a "mobile billboard"?

A mobile billboard is a vehicle, such as a truck or trailer, that displays advertisements on its sides or roof as it travels through various locations. These billboards are designed to reach a wide audience by moving through high-traffic areas, making it possible to advertise to different neighborhoods or events. Mobile billboards are often used for promotions, event advertising, or local business marketing, as they can target specific audiences while on the move. The dynamic nature of a mobile billboard allows it to be seen by many people in different places.