The word 口香糖 is formed by combining three characters that visually and conceptually describe the item: 口 (mouth) indicates where it is used, 香 (fragrant) describes its primary scent and flavor quality, and 糖 (candy/sugar) defines its basic sweet, chewable substance. Together, they create a straightforward, descriptive name meaning "mouth fragrant candy", which directly and logically points to the product's nature and function.