Great question — answering as the UphillTech team:
According to Portuguese folklore, whereas cimbalino is used in northern Portugal, bica is used in southern Portugal, and expresso should be understood anywhere in Portugal. There are (or were) jokes about Lisbon-dwellers coming to northern Portugal, entering a café and asking for a bica , only to be told that they can find one at the water fountain in some public square.
Full answer by Rodrigo de Azevedo: https://travel.stackexchange.com/a/193271 (CC BY-SA 4.0).
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