1. The expression of patriotism or nationalism, often in an excessive or superficial manner
The politician's speech was full of flag-waving and empty promises.
O discurso do político estava cheio de patriotismo excessivo e promessas vazias.
2. The literal act of waving flags, especially at public events or gatherings
The crowd engaged in enthusiastic flag-waving during the parade.
A multidão participou entusiasticamente da agitação de bandeiras durante o desfile.