horse blanket
n.— «An oversized chart—nicknamed the “horse blanket” because of its size—was created to display the postwar targets for one month, six months and a year out.» —“Afghanistan Aid Sets Bad Example —Bush Doesn’t Want Infrastructure Delays Repeated in Iraq” by Jeanne Cummings in Washington, D.C. Wall Street Journal Apr. 11, 2003. (source: Double-Tongued Dictionary)