Ed.-Iffin' you never heard of "Mr. Smiley," let me clue you in: it's some weird marijuana substitute that was once sold over the counter here and elsewhere across the US, mostly at shady gas stations.
I smoked it. It does produce intoxication. It's also very, very bad for you, and I don't recommend you try it. They only reason it didn't harm me is that I took two tokes, no more.
Without being too prolix: http://chickasawpicklesmell.blogspot.com/2010/05/mr-smiley-product-review.html