Top Definition
Someone who embarasses (themselves and) their country with rude, stupid, or inappropriate behaviour, particularly in the news or when travelling abroad. Can also refer to someone who is zealously patriotic; often a politician or sports reporter.
Do you ever notice that the flagwarts always get tickets in the first three rows at the olympics?

Only a flagwart would wear a USA jersey to a Brazil/Argentina soccer match.

Did you see that flagwart on CNN? He's so wrapped in the flag, it almost strangled him.
by YerluvinunclePaul September 21, 2010

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