n s'it
N s'it means ‘everything else that’s going on, and it’s probably annoying.’ People use it when they’re too lazy or too angry to finish their sentence.
He said, ‘I’m not coming to the party, and n s'it.’
She texted, ‘I hate my job, my boss, and n s'it.’
He yelled at the cat, ‘You’re the worst, and n s'it.’