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.
urduwallahs 
Famous poet Akbar Allahbadi used the word ‘Mohazzab’ very beautifully in a satirical cpuplet:- “Hue is qadar mohazzab, kabhi dekhi na ghar ki soorat,
…Kati umr hotlon mein mare haspatal jakar…”
Vah Akbar Sahib . Maghrabi Tehzeeb ki kia dhajjiyan uraeen hain. Allah Aap ko Ghareeq ay rahmat far maey. Aameeen.