1. A curse or wish for someone to experience a bad day; an expression of hostility, anger, or contempt toward another person
After the argument, she said, 'I hope you have a horrible day!'
Depois da discussão, ela disse: 'Que você tenha um dia horrível!'
2. An insulting or dismissive way to end a conversation with someone you are angry with
He stormed off, wishing her a horrible day.
Ele saiu furioso, desejando a ela um dia horrível.