- noun a narcotics user. Hop was a late-19th-century term for opium, later extended to any ‘stupefying’ drug including marihuana. Hophead, dating from the 1940s, was one of the first words for a category of drug-users to use the ‘-head’ suffix. By the 1960s the word was used mainly by law enforcers and other disapproving adults. It is now rare.