have legs

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have legs

  1. (idiomatic) To have endurance; to have prospects to exist or go on for a long time.
    • 2007, Pete Williams, How to Turn Your Million Dollar Idea Into a Reality (page 68)
      Your plan will tell you if your idea has legs and is viable.
    • 2011, Larry Garrison, ‎Wallace Wang, Breaking Into Acting for Dummies, The Gatekeepers
      The longer a film plays (which, in show business terms, means that the film has legs), the more the theater gradually earns from ticket sales.
  2. (nautical) To have speed.