('Ta-ta' in some dialects of English is an informal and friendly 'Goodbye'. 'Tata' is the isiXhosa word for 'Father')
You've heard, right?
One of my heroes passed away just recently. He was, of course, many MANY people's hero so at least I need never feel alone in my sadness.
And for the most part, South Africans are united in their sadness at Madibas passing and keen to continue in his stead and with his example as their guide. The Head of opposition party the Democratic Alliance put it so simply:
“He has handed the baton to us and we dare not drop it"