English Translation
He has friends all over the world thanks to his job.
The RAE doesn’t have an entry on “en medio mundo”, only this:
medio mundo
m. coloq. Una cantidad grande de gente. Medio mundo estaba allí.
He has friends all over the world thanks to his job.
The RAE doesn’t have an entry on “en medio mundo”, only this:
medio mundo
m. coloq. Una cantidad grande de gente. Medio mundo estaba allí.
Maybe it’s just not considered a fixed expression; it does sound perfectly fine nonetheless