What is quid meaning?

The word "quid" is slang for the British pound sterling. It is thought to have originated from the Latin phrase "quid pro quo," meaning "something for something" or "something in return." It is commonly used in the UK and is analogous to the American slang term "buck" for the US dollar. Additionally, "quid" can also be used to refer to chewing tobacco or any small, specific amount of something.