>Never heard this term here. It's Coke that win hands up (I want a Coke), even if you are talking about Pepsi.

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>Up here it is called "pop". When I asked an American "Do you want a pop?"... they look as if I'm going to punch them.

Depends on where you are here in the US. Some areas call it a pop, others a soda, others say Coke, even if Pepsi, which potentially opens the vendor up for a law suit. If you ask for a Coke and the vendor gives you a Pepsi without clarifying that you will get Pepsi, Coke can sue. That's how they reinforce their trademark.