Fackeltanz - A friend who's too loud, too proud, and too dumb to realize

A friend who's too loud, too proud, and too dumb to realize they’re the joke.

Your friend yells, 'I’m the best at basketball!' You say, 'Fackeltanz.'

At the party, your friend tries to start a rap battle and fails. You laugh, 'Fackeltanz.'

Your friend says, 'You can’t beat me in a video game.' You say, 'Fackeltanz.'