Derived from an msn messenger emoticon, '(h)' denotes a round yellow face with black shades and a big white grin, what it of course also denotes is the quality of being good/cool/great often with some ebullience.
heroin or morphine; William Burroughs, in his book, "Junky," frequently referred to dope as H. as a way of blanding down his subject linguistically. Burroughs had an enormous influenceon the Beatgeneration.