"Tray trotter" is a somewhat old-fashioned term that refers to a server or waiter who rushes around carrying trays of food or drinks in a busy establishment. While this may have been a common term in the past, there are many other synonyms that capture the same meaning and convey a more contemporary feel. Some alternatives to "tray trotter" might include "food runner," "server," "waitstaff," "caterer," "food and beverage attendant," or "restaurant employee." These words all capture the essence of someone who works hard to keep food and drinks flowing to the customers, whether in a restaurant, hotel, catering event, or other hospitality setting.