Definition & Meaning of "fuck all"in English

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

Fuck all is a slang term that appeared in mid-20th-century British English to mean a total absence of value, quantity, or significance. It comes from using "fuck" as an intensifier and "all" ironically, so the phrase means "all of nothing." The logic is simple: adding a strong swear word makes the zero feel stronger and more dismissive. Historically, it was informal and coarse, used to stress that something amounts to nothing, and today it remains common in casual speech, especially British and Commonwealth English, but is avoided in polite or formal contexts.