Spanish speaker here, non-native, used to be fluent but have lacked practice over the years. Anyway. In Canary Islands on holiday recently, DH always sends me to the bar as he thinks ordering drinks in Spanish gets better service / bigger measures and he's often right. His drink of choice in the evening is a rum and coke - or Cuba libre as I was always taught it was called. Was told off by a barman who said that was not an appropriate term unless I was a communist?
I had had a couple of "copas de cava" myself, and wasn't up for a lengthy debate about caribbean politics. So just said in English "Ok, rum and coke then". I do know there is the "cubata" but I always thought that was dark rum and not white rum like Barcardi.
Muchas gracias, guapas.