"Gimmie" was a 21st century slang term for a group of inhabitants of the United States of America's Sanctuary Districts. They were useful members of society who needed help finding work and a place to live ("Gimmie" as in "give me work", "give me shelter", etc.). A service the Districts allegedly provided for them was help in finding job placements, but in truth, this service was either ineffective or non-existent.
Michael Webb and his son Danny were classified as gimmies in the 2020s. (DS9: "Past Tense, Part I", "Past Tense, Part II")