bring-down

bringdown

1. A cause of sadness or melancholy. Getting dumped by my boyfriend was a real bring-down. Geez, that documentary about the environment was a bringdown, huh?
2. A disappointment. I thought our movie was going to be a great success, but the box office numbers for opening weekend were a real bringdown.
Farlex Dictionary of Idioms.

bring-down

1. n. something that depresses someone. The news was a terrible bring-down.
2. n. something that brings someone back to reality. I have had one bring-down after another today.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • guzzery
  • dinky
  • Hughie
  • ralph
  • ruth
  • earl
  • downer
  • downie
  • beetle
  • Big Dig
References in periodicals archive
Here's what worries me most--the bring-downs are never about important stuff.