Jonesing for? What's that mean?

What does jonesing mean?  It means "a strong desire or craving for" something.  I came across the word in a comment about Mark Reutlinger's cozy mystery Mrs. Kaplan and the Matzoh Ball of Death.  I don't remember hearing this word before, so I looked it up even though I could tell in context what she meant by her comment:  "And now I'm Jonesing for Motzah Ball Soup."  (Yes, she misspelled "matzoh," and "jonesing" doesn't need a capital letter.)