Who is rob in and big black?

Please provide more context. "Rob" and "Big Black" could refer to a variety of things.

* Is this about a specific band or musical group? There are a few bands called "Big Black," but it's unclear if "Rob" is related to them.

* Is this about a specific movie, TV show, or book? Perhaps there's a character named "Rob" in a story with "Big Black" as a relevant detail.

* Is there a specific event or situation you're referring to?

Please give me more information so I can help you understand who "Rob" is in this context.