0 a small cupboard or table on wheels, with a heated part where food can be kept warm until it is ready to be served:
He should have cooked it at the last moment before serving rather than trying to keep it warm on a hostess trolley for 20 minutes.
Reluctantly I must concede that Pam's hostess trolley came into its own last Saturday.
Trolleys were such an integral part of restaurant service that aspirational folk yearned to have one at home, and so the hostess trolley was born.