octave rocking
A singer's way of showing off by screaming like a banshee on one note, hoping people will think they're amazing, but mostly it just sounds like they're being tortured.
"I did an octave rock on 'Stars and Stripes Forever' and my throat felt like it was on fire.", @MusicMartyr
"The singer at the Fourth of July concert did an octave rock so loud, the fireworks looked jealous.", @FireworkFan
My teacher did an octave rock during the school's patriotic song and now she can't talk for a week.", @StudentLife