A potent strain of marijuana and the alias of the grower. Supposedly grown from 13 seeds found in an ounce of $500 weed purchased at a Grateful Dead show by Chemdawg. Grown in the 90's and known as chemdawg or diesel on the East Coast or OG Kush on the West Coast. All of the diesel strains (sour, headband, NYC, etc...) originate from chemdawg.
The most expensive marijuana in the dispensary was a strain called "chemdawg" and also known as "OG Kush". It was also the most potent with a mellow and relaxing high.