|A comedy club that caters to the large guiri|
communities in Madrid and Barcelona.
|Typical cartoon humor about "Fooling the guiris."|
While it's true that people here probably only ever use the word to refer to you when you are doing something annoying or slightly out of place, you shouldn't take it too personally. In general, it is a whimsical way to refer to foreigners. They know that you're just having fun and don't know your way around. So it is not an insult. Just a way that they let off some steam when they have to deal with non-locals clogging up their day-to-day routine.