The phrase refers to an incident or display involving a bus that is either associated with or intended to represent Donald Trump within Denmark. It suggests a form of political demonstration or a themed vehicle traveling or stationed within the country.
The appearance of such a vehicle within Denmark is notable due to the potential for causing political commentary and cultural exchange. The visual spectacle and association with a well-known political figure could act as a vehicle for expressing diverse viewpoints related to international relations, and political ideologies.