2. Acronym for a corrupt, inefficient, wasteful and dirty organization that runs NYC public transportation and makes tax payer money disappear magically.
3. Antonym for efficient
see Useless, Corrupt, Inefficient, and WTF.
2. The MTA had more riders than ever, but can't seem to find their money.
3. The MTA pays people to count the number of dead rats in the system.