Definition of flag-waver in US English:

flag-waver

noun

  • See flag-waving

    • ‘And, ironically for such a flag-waver for Scotland, he is only half Scottish, was born in London, and has lived in Los Angeles for 30 years.’
    • ‘In anticipation of such nationalistic events, we attempted to determine exactly where the ardent flag-wavers live.’
    • ‘It's easy to be a flag-waver and to be patriotic and to support the troops when you're in the initial attack phase and it looks like you may have only a two-week war.’
    • ‘As I'm sure you know, I love the country but am no flag-waver.’
    • ‘Here are the flag-wavers who felt patriotic enough to reply.’