The Chinese word 吹嘘 (chuīxū) is a disyllabic compound formed through a coordinative morphological process, where two semantically similar characters are combined to create a new, nuanced meaning. The first character, 吹 (chuī), literally means "to blow" (as with air), and the second, 嘘 (xū), means "to exhale slowly" or "to hiss". When combined, their literal senses of expelling air are metaphorically extended to describe the act of a person "blowing out" words in an exaggerated, boastful, or overly praising manner, thus meaning "to boast" or "to brag". This formation exemplifies how Chinese often uses vivid, concrete verbs to express abstract behavioral concepts.