don't rain on (one's) parade

don't rain on (one's) parade

Don't ruin one's plans or temper one's excitement. He's all happy because he thinks he got the job on his own merit. Don't rain on his parade by telling him you called in a favor. Mom, please don't rain on our parade by chaperoning the school dance.
See also: on, parade, rain
Farlex Dictionary of Idioms.
See also:
  • come it
  • come it (with one)
  • DGAF
  • don't count your chickens
  • don't get me wrong
  • don't beat a dead horse
  • all in (one's) head
  • (I) won't tell a soul
  • don't go there