a passing fancy

a passing fancy

Something that captures one's interest or enthusiasm for only a brief period of time. Jim was really into learning about horticulture for a while, but it turned out to be only a passing fancy. I played a few sports during college, but they were all just passing fancies.
See also: fancy, passing
Farlex Dictionary of Idioms.
See also:
  • get (one's) mojo back
  • mojo
  • geek out
  • geek out about (someone or something)
  • geek out over (someone or something)
  • get (one's) teeth into (something)
  • get one’s teeth into something
  • get your teeth into
  • get your teeth into something
  • get/sink your teeth into something