keep it between the ditches

Meanings:

• 1.

  United Statesrural Englishinformalcolloquial
  • To drive or travel safely within the roadway, staying between the edges or boundaries of the road and avoiding leaving the lane.
  • To remain on the intended path or route without veering off course.

• 2.

  United Statesrural Englishinformalidiomatic
  • To act or behave within acceptable or conventional limits; to keep actions or speech discreet and not attract undue attention.
  • To refrain from taking risks or doing anything that would deviate from established norms or expectations.