Patchouli is a heavy, sweet-earthy smell that comes from the dried leaves of a bush grown in South East Asia. People press those leaves for oil and put it in perfume, soap, and incense. The word names both the plant and the scent. In the West it became strongly tied to 1960s and 1970s “hippie” style — long hair, incense, old clothes — so some people love it and others think it is too much, or a bit dated. It is shop talk, not school-formal talk. Though actually, the same plant is used in Chinese herbal medicine; the English word still points first at that thick perfume smell, not at a clinic.

廣藿香（植物；也指那種厚重的香味或精油）