Data Collected by Alan McConchie about what people call soda around the country was put into a chart by Matthew Campbell and Prof. Greg Plumb of East Central University in Oklahoma and the result is below. The word is soda, everyone.
Via Kerry and LAist.
unlikelywords.com 
What about Tonic? Didnt you grow up in MA?
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I grew up in the South, and it is still fascinating to me that everyone calls sodas “Coke” down there. Even if you want a root beer you call it a coke. I know the headquarters for Coca-Cola are in Atlanta which explains the obvious stranglehold their product has the southern states, but changing the lexicon is pretty ballsy.
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