Definition & Meaning of "divvy"in English

What does "divvy" mean in British slang?

It is used in British English, particularly in Northern England, to mean a foolish, stupid, or silly person. People typically say "Don't be such a divvy" or "You absolute divvy." The term originated in 20th century British slang, possibly from "deva" (a mental defective) or from "div" as a mild insult, and remains common in informal UK speech.