path of least resistance

/P AE1 TH AH1 V L IY1 S T R IH0 Z IH1 S T AH0 N S/
noun
  1. 1

    (figuratively) The easiest way to do something.

  2. 2

    (physics, mathematics) The path or route by which an object can move while minimizing the amount of resistance on the object's movement.