Using context clues what does the metaphor dirt-disappointed mean ?
"brought back to the store, the pickers would step out of the backs of the trucks and fold down, dirt-disappointed, "

It means that the collectors were exhausted with their job.

Explanation:

Context clues are a literary technique that allows authors to help the reader understand the meaning of unknown words through the context of the presented narrative.

In the question above, if we understand the context of the excerpt shown, we will see that the narrator is talking about workers who perform a tiring and exhausting function, in addition to being fully rewarded for it. Because of this context, we were able to understand that the word "dirt-disappointed" means that the workers were tired, exhausted and worn out with their job.