Definition & Meaning of "windsucker"in English

What is the origin of the term "windsucker" and how is it used?

"Windsucker" is a slang term for a person regarded as contemptible, cowardly, or worthless. It appeared in English in the 19th to early 20th century, likely originating as a figurative insult suggesting someone who does nothing productive, merely "sucks in air" like the wind, contributing nothing of value. The term is used in informal, derogatory, or mocking contexts to express disdain for someone's character or behavior. It is insulting but not sexual, and its offensiveness is moderate—never neutral, though rarely extreme.