big_shot
1. [ noun ] an important influential person
Synonyms: head_honcho big_cheese big_deal big_enchilada big_fish big_gun big_wheel
Examples:

"he thinks he's a big shot" "she's a big deal in local politics" "the Qaeda commander is a very big fish"

Related terms: important_person knocker supremo colloquialism
Similar spelling:   bigot
  big_toe
  big_cat