An alternate meaning for the U.S. government, instead of Uncle Sam, particularly when handing out sweets. Usually said facetiously or sarcastically. Also connotes blind bureaucratic laws that pay people for not working or for researching how drunk women get horny, or even corrupt elected officials who pay off their contributors and voters to keep them in the pork business.
Cain't wait 'til Uncle Sugar gets my money sent so I can buy some more crack!
Uncle Sugar shure knows how to keep peoples voting for him--just give 'em mo' money.