chalk out

verb5

1. •
   To draw or write down (something) using chalk.
2. •
   (figurative) to make (plans); to sketch (something); to describe (a plan).

   • I shall pursue the plan I have chalked out. — 1795
3. •
   (US, slang) To die.
4. •
   (US, slang) To kill (someone).
5. •
   (US) In a multi-race wager, to lose to the favorite in all of the remaining races.

   • A 25-1 shot won race 3, but the rest of the early pick 5 chalked out after that.