Chocolate Chunk is a deceptively potent (THC levels reported ranging from 17-20%), euphoric, positive, calm and tranquil, (most believe) 100% pure Indica Afghani descendant with the sweet aroma and flavor of earth, coffee and (yes indeed) chocolate. Not requiring much to achieve its full effect, this numbing, sedating and couch-locking strain may provide a nice excuse for a nap.