draw straws

verb2

1. •
   To decide at random by drawing (selecting randomly between) straws, sticks, etc., one of which differs from the others (typically by being shorter), held in a person's hand so as to conceal which is the different one. Typically, whoever draws the short straw must complete some undesirable task. Alternatively, whoever draws the longest straw gets a desired position.

   • They drew straws to see who had to wash the dishes.
2. •
   To decide by any means of chance.