And I spake into the warm evening air:
O Cairo, O Cairo! Wherefore art thou called Cairo...
He jetted a phlegm turd out his cigar hole and called out:
Today, wherefore art thou means more literally WHY art thou. Or you can ask WHAT art thou. Same answer.
Maarofsh, or moosh aarif, is the way they choose to say "I don't know." Yes, because they're too cool for the Standard Arabic "laa arif."