Weed given out by the government. Usually of good quality, or as some prefer to say it, "some dank ass shit". You smoke this every day if you have kiddie glaucoma.
If you're doing research, try to find some G-13, noted for its clean high and lack of paranoia-inducing side effects. Or so I've been told.
The feds tend to buy around Dupont Circle at about 2-3am.