be in the mainstream (of something)

be in the mainstream (of something)

To be widely accepted and/or normalized. Lots of ideas that are currently in the mainstream weren't at one time. I mean, not that long ago, women and minorities in this country weren't allowed to vote. That hairstyle definitely isn't in the mainstream of fashion, yikes.
See also: mainstream
Farlex Dictionary of Idioms.
See also:
  • mainstream
  • in the mainstream
  • in the mainstream (of something)
  • get in(to) the mainstream (of something)
  • rejoice in
  • rejoice in (something)
  • can't call (one's) time (one's) own
  • cult following
  • following
  • have (any/some) bearing on (someone or something)