toe the

toe the line

To adhere to the rules of something. (Often misspelled as "tow the line.") From now on, I plan to toe the line and do exactly what Gram tells me, to avoid getting in any more trouble. I expect you to toe the line at all times if you want to remain at this firm, Jonathan.
See also: line, toe
Farlex Dictionary of Idioms.

toe the

line/mark
1. To adhere to doctrines or rules conscientiously; conform.
2. Sports & Games To touch a mark or line with the toe or hands in readiness for the start of a race or competition.
See also: toe
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • toe the line
  • toe the line/mark, to
  • toe the mark
  • keep to (something)
  • play by (one's) rules
  • play by somebody's rules
  • fall in line
  • fall in(to) line
  • fall into line
  • glue (something) to (something)
References in periodicals archive
THE MIDDLE TOE The one in the center screams, "Action!" If yours is straight, you get things done.
THE FOURTH TOE The second-to-last toe gets to the root of relationships--with crushes, parents, friends, sibs, swim coaches and, yes, even yourself.
What your toes know! Who knew! All sorts of secret stuff is buried between your toes!