pain-popping
A pain-popping is when someone says something so stupid that it feels like you got hit with a pie and then laughed at by everyone.
My best friend said I was 'the worst gamer ever.' I dropped my controller. That was a pain-popping.
My crush told me he only liked girls who could sing. I can't even hum. That was a pain-popping.
My teacher called my essay 'so bad, it makes no sense.' That was a pain-popping.