visiting fireman
noun
1- US informal an important visitor to a city or organization who is given an official welcome and especially cordial treatment〈美, 非正式〉（受到城市或组织隆重欢迎和亲切接待的）贵宾。
1.1
- a visitor or tourist who is accorded special attention because they are expected to spend extravagantly阔佬访客, 观光阔佬。