big in (something or somewhere)

big in (something or somewhere)

Well-known, influential, and/or successful in a particular arena or place. He's very big in the financial sector, so I'm surprised you haven't heard of him. Why are heavy metal bands so big in Scandinavia?
See also: big
Farlex Dictionary of Idioms.
See also:
  • big cheese
  • big cheese, the
  • a big cheese
  • big juice
  • BWOC
  • BMOC
  • have (one's) name in lights
  • have your name in lights
  • famous for being famous
  • a big name/noise