Roman holiday
noun
- poetic/literary an occasion on which enjoyment or profit is derived from others' suffering or discomfort〈诗/文〉以观看别人受苦为乐的娱乐; 得自他人受苦的欢乐（或利益）。
词源
early 19th cent.: from Byron's Childe Harold, originally with reference to a holiday given for a gladiatorial combat.