beltway

noun1

1. •
   (US) A freeway that encircles a city.

adjective1

1. •
   Of or relating to the culture of Washington, D.C., sometimes with a suggestion of its elitism or insularity; politicized.

   • Apparently wishing to go Beltway in a big way, the Gap reportedly solicited Clinton spokesman George Stephanopoulos and media adviser Mandy Grunwald to pose for ads, but were turned down. — 1993