(that) Monday morning feeling idiom informal (Australian English Mondayitis, /ˌmʌn.deɪˈaɪ.tɪs/ /ˌmʌn.deɪˈaɪ.t̬ɪs/)
周一综合症（指周末休假后周一不想上班或上学的情况）
the way people feel after the weekend when they do not want to go to work or school
I've got that Monday morning feeling. 我就是周一早上不想上班。