Definition & Meaning of "Throw a wrench into the works"

throw a (monkey) wrench into the works

/θɹˈəʊ ɐ mˈʌnkɪ ɹˈɛntʃ ˌɪntʊ ɪn ðə wˈɜːks/

/θɹˈoʊ ɐ mˈʌnki ɹˈɛntʃ ˌɪntʊ ɪn ðə wˈɜːks/

to throw a (monkey) wrench into the works

PHRASE

to slow down a plan or activity or prevent it from going on

to [throw] a (monkey|) wrench (into|in) the works definition and meaning

What is the origin of the idiom "rain on someone's parade" and when to use it?

The idiom "rain on someone's parade" originates from the notion of a sudden downpour spoiling an outdoor celebration or event. It is used figuratively to describe the act of spoiling someone's happiness, excitement, or plans by delivering unwelcome news, criticism, or negativity.