run away with the idea/notion

run away with the idea

To take a fantastical or unrealistic idea as something that is definitely true or destined to happen. His book appeared on a local bestseller list, and now he's run away with the idea of being a famous author. Local tabloids are running away with the idea of the mayor being a part of a big conspiracy.
See also: away, idea, run

run away with the notion

To take a fantastical or unrealistic idea as something that is definitely true or destined to happen. His book appeared on a local bestseller list, and now he's run away with the notion of being a famous author. Local tabloids are running away with the notion of the mayor being a part of a big conspiracy.
See also: away, notion, run
Farlex Dictionary of Idioms.

run aˈway with the idea/notion

(spoken) believe something that is not true: Don’t run away with the idea that you’re going to be famous just because you’ve appeared on television once.
See also: away, idea, notion, run
Farlex Partner Idioms Dictionary
See also:
  • run away with the idea
  • run away with the notion
  • be meant to be
  • be meant to be something
  • give (someone) a big head
  • be in a dream world
  • delusion
  • delusions of grandeur
  • cast beyond the moon
  • flight of imagination