A. To ruin someone's plans or happiness
B. To celebrate
C. To ignore someone
D. To have fun
Answer: To ruin someone's plans or happiness
A. To ruin someone's plans or happiness
B. To celebrate
C. To ignore someone
D. To have fun
Answer: To ruin someone's plans or happiness
Additional Information: 'Rain on someone's parade' means to spoil someone's joy or plans.
Subjects: Idioms and Phrases, Vocabulary