: This likely describes the physical capacity or dimensions of the storage item (e.g., a "big and wide" 3-zip binder) designed to hold "proper" or official documents.
: This is not a standard paper size. It may refer to a specific brand of 3-zip binder , portfolio, or a specialized legal/proper paper storage solution used in professional or academic settings.
The phrase "Mallu with big _and _ 3zip — proper paper" does not appear to be a standard idiom, official term, or widely documented slang in Malayalam or English. Based on the individual components, it most likely refers to a specific, possibly technical or niche, context:
