Definition of "hit upon"

hit upon

verb
third-person singular simple present hits upon, present participle hitting upon, simple past and past participle hit upon
1. To address.
2. (idiomatic) To think of; to discover or invent.
  Quotations
  They hit upon the idea of a site that would help users exchange video files.
  2006 October 10, Miguel Helft, Matt Richtel, “Venture Firm Shares a YouTube Jackpot”, in New York Times