Mohazzab means to be cultured. It comes from the same root as the word tehzeeb.

Jahan Baat Karne Mein Ho Dikkate
Wahan Kaam Aati Hai Urdu Zabaan
Haqeeqat Toh Yeh Hai Insaan Ko
Mohazzab Banati Hai Urdu Zabaan

When you have trouble making conversation, the Urdu language comes to your rescue. The truth is that speaking in Urdu makes a person cultured and refined.