Carlos wrote:What I still don't understand is why it's called "A straw for the thirsty".
Your question got me curious, so I did some research. I am afraid it was not too helpful. That phrase is not a common one in the United States.
The author of the comic book selected that phrase for the title of his comic, for whatever reason. Perhaps if we found a copy and read it, the reasons for the title might be found in the story.
From historical context and looking at the cover, it may mean something along the lines of the man and woman gangsters are desperate for money and find a way to get some.