A countrytard is someone who is insistent on playing crappy country music at full volume 24/7 making everyone around them have burning and bleeding ears. It is horribly unpleasant yet they do not care.
That countrytard just won't quit with his boot skootin music! Ugh! I hear banjos...
Used to describe a person who either excessively listens to country-styled music, voted for Trump, or someone who takes way too much pride in being American.
"Dude, did you see Mike? That guy voted for Trump, what a countrytard."