DO YOU KNOW WHO "JOE BLOGGS" IS?
If you know what "Joe Bloggs" means then I assume that you have a high level of English. It is not something that many English teachers teach but nonetheless is useful because you will hear native speakers use it from time to time (de vez en cuando).
"Joe Bloggs" is used to describe an "average or typical man". So, for example: "We need to make this advertising easy to understand so that Joe Bloggs can understand it" or "This equipment is very exclusive, it is not something that Joe Bloggs would buy".
Do you have a "Joe Bloggs" in Spanish?
Hope that helps!
Soy el director de Daniel Smith + Partners. Tengo más de 10 años de experiencia enseñando inglés a españoles.