• noun a type of container (usually ceramic, but sometimes made of wood or stone) which is packed with marihuana or hashish (often mixed with tobacco) for smoking. This item from the lexicon of hippies and other cannabis users is not a pipe but a hollow cone held cupped in both hands, with a ‘chillum stone’ lodged in it to prevent the contents being sucked into the lungs of an enthusiastic user. Chillum is not, strictly speaking, a slang word, but Hindi in origin. It is, however, the only name for the object in question.