Short for Washington Metropolitan Area Transit Authority, which operates subway and bus systems in the Washington DC area. Also called Metro. The initials are normally pronounced, particularly in regards to their Web site.

Congress's TA, it will always have all the money it ever needs for expansions and shit.

Also an insanely monotonous subway system (although not neccesarily boring).

Replaced an excellent and very cool trolley system with Conduit Cars in the city with said monotonous subway and crappy buses.