Favourite phrase Great Snakes, turned to

Comic strip hero Tintin, the Belgian reporter with the weird hairdo, landed on the moon years before Neil Armstrong did. But as far as speaking in Hindi goes, he's running a bit behind schedule. He finally arrived in the Hindi heartland spewing niceties like 'bhagwan bhala kare', 'mujhe maaf kijiye' and 'mera saubhagya' this week. His favourite phrase 'Great Snakes' has finally adapted to the emergence of the Indian market and turned to 'Baal ki khaal'.
The well-travelled reporter and his troupe - pet dog Snowy, master of swear-words Captain Haddock, bumbling detective twins Thomson and Thompson and absent-minded and deaf Professor Calculus - have translated their quirky speech mannerisms into 58 international languages before learning our national language. They have even been speaking in Bengali for some time. Tintin visited India in The Cigars of the Pharoah, the fourth in the 81-year-old series. His India trip was packed with all the stereotypes you would expect - a fakir, an elephant, a holy cow and a Maharaja (of Gaipajama, if you please). Once again, on his way to Tibet he landed in Delhi in Tintin in Tibet. Despite the two trips, he did not pick up any Hindi until until 2005, when Delhi-based publisher Om Books approached Caterman for translation rights.

I wonder what they mean by phrase, Great Snakes, turned to here. Because of these, I could not understand the whole highlighted sentence.

Source : Mumbaimirror