What a bunch of garbage! An elderly Manhattan woman living on Social Security was slapped with a $100 ticket -- just for throwing away a newspaper in a city trash can. Delia Gluckin, 80, tossed the paper in a bin right outside her Inwood apartment building Saturday morning, only to be ambushed by an overzealous Department of Sanitation agent wielding a handheld computertized ticket book. "I was walking to take the subway downtown and dropped it in a trash can, and this lady in a blue uniform ran up to me," Gluckin told The Post.