Definition & Meaning of "schmo"in English

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

"Schmo" is a slang term that emerged in American English in the mid-20th century, derived from the Yiddish word schmuck, which originally meant "fool" or "jerk." It describes a person seen as foolish, insignificant, or contemptible, often in a lighthearted or dismissive way. The term is widely used in informal speech, comedy, and everyday conversation to poke fun at someone's behavior or social standing. It is mildly derogatory but usually not deeply offensive, often carrying a tone of teasing or casual criticism rather than serious insult.