walk the chalk

walk the chalk

To show one's competence in a particular area. This outdated phrase refers to a sobriety test in which one had to walk between chalk lines. I was so worried that I wouldn't be able to walk the chalk, but I got a perfect score on my exam!
See also: chalk, walk

walk the chalk

have your sobriety tested.
A traditional method of ascertaining whether someone is sober or not is to see whether they can walk along a line chalked on the ground without wobbling.
See also: chalk, walk
References in periodicals archive ?
Walk the chalk Chalkboard wall sticker, PS20, Not On The High Street Use this to scribble down the things you need to buy on your next shopping trip.
We had to walk the chalk line, and Aunt Callie wouldn't let us even twist.