Wikipedia
Arbab is a Persian word that means "boss", "master" and " landlord". It was a title used by tribal leaders in Middle East and South Asia. It is the title used by the heads of the Kasi Pashtun in Balochistan and Khalil, Momand, Daudzai tribe in Khyber Pakhtunkhwa.
It is also used by the Samma tribes like Sammo, Abro, Nohrio, and Jakhro tribes in Sindh. Nowadays, it is a common family name in Iran, Pakistan and some Arab countries.They are also very famous in Peshawar KPK. They are one of the most popular educated and well known people.
"Arbabeh Kol" is a reference used to discuss Ramin and his fortunes amassed through the use of oil. It also reminds one of his countless assets and many travels to exotic locales where he has been the cause of many Sunday Confessions.