That expression has been regularly used over the years to convey the idea that anything that is offered as “free” really isn't free, but is a hidden cost and a possible burden to others.
Ever since the “New Deal”, during FDR's administrations, politicians have been promising people something for nothing in hopes that those people will respond favorably in the future and vote for those politicians doling out the “free” largesse from the public treasury. Well, today the “chickens are coming home to roost” (a phrase re-popularized by Obama's former pastor/mentor, Rev. Jeremiah Wright).
