rain on (one's) parade

rain on (one's) parade

To ruin one's plans or dampen one's excitement. I hate to rain on your parade, but I think your A in chemistry was actually a clerical error. Mom really rained on our parade by chaperoning our school dance.
See also: on, parade, rain
Farlex Dictionary of Idioms.

rain on someone's parade

 and rain on someone or something
Fig. to spoil something for someone. I hate to rain on your parade, but your plans are all wrong. She really rained on our plans.
See also: on, parade, rain
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.

rain on one's parade

Spoil one's plans, as in The minority party in the legislature has tried hard to rain on the speaker's parade, but so far his agenda has prevailed . This expression conjures up the image of a downpour ruining a celebration such as a parade. [c. 1900]
See also: on, parade, rain
The American Heritage® Dictionary of Idioms by Christine Ammer.

rain on someone's parade

JOURNALISM
If someone rains on your parade, they do something which spoils your plans or spoils an event that you hoped to enjoy. To make sure that all goes according to plan and no one rains on his parade, the president's safari will stay clear of trouble spots. It's irritating that he could rain on my parade by stealing the record before me.
See also: on, parade, rain
Collins COBUILD Idioms Dictionary, 3rd ed.

rain on somone's parade

prevent someone from enjoying an occasion or event; spoil someone's plans. informal, chiefly North American
See also: on, parade, rain
Farlex Partner Idioms Dictionary

ˌrain on somebody’s ˈparade

(American English) spoil something for somebody: Drugs again rained on the Olympics’ parade as another athlete tested positive for an illegal substance.
See also: on, parade, rain
Farlex Partner Idioms Dictionary

rain on someone’s parade

and rain on someone/something
in. to spoil something for someone. I hate to rain on your parade, but your plans are all wrong.
See also: on, parade, rain
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • at (one's) doorstep
  • at doorstep
  • at fingertips
  • at one's fingertips
  • at (one's) fingertips
  • at your fingertips
  • at somebody's expense
  • at someone's expense
  • at expense
  • at (one's) expense