丰满 (fēng mǎn) literally combines 丰 (fēng), meaning 'abundant' or 'plentiful', and 满 (mǎn), meaning 'full' or 'complete'. Together, they convey the idea of being well-filled, ample, or richly developed — not merely 'fat', but healthily and attractively full-figured. It’s commonly used to describe people’s physical appearance, especially women’s bodies, in a positive, respectful, and aesthetically appreciative way — suggesting curves, vitality, and natural maturity.

The term also extends metaphorically to non-physical domains: a 丰满的构思 (fēng mǎn de gòusī) means a 'well-developed idea', while 丰满的羽翼 (fēng mǎn de yǔyì) describes birds with 'fully grown, strong wings'. In zoology or animal husbandry, it often refers to livestock or poultry with good muscle development and healthy weight — for example, describing chickens bred for meat. Though neutral in formal contexts, it carries subtle cultural connotations of harmony, nourishment, and flourishing.