K2
An herbal smoking mix of herbs and spices with synthetic THC sprayed on. No studies on its effects have been done but it's said to give a high similar to medical marijuana in that it's shorter lived. It's currently (Feb 2010) legal throughout most of the US.
Person A: Yo lemme get some of dat fine herb....woah what is dis shit?

Person B: K2 mayne, shits off the chain