Definitions by K2.

Mango people 

It's a slang used for common people. It was first used in the movie Love Aaj Kal (2009).

Quote from the movie itself:
People like us, i.e., you and me, keep running and will keep running until we reach another fruit. Until then, we are the आम जनता... The Mango People

Mango people by K2. November 18, 2009