Here's a breakdown of what might be happening:
* "Gringo" is a term used in Latin America to refer to foreigners, particularly from the United States. It can be used in a neutral way, but it can also be offensive depending on the context and tone.
* "Salou" is a coastal town in Spain. It's possible that the phrase was intended to be "Gringo in Salou" or "Gringos in Salou," referring to foreign visitors in that town.
Without more context, it's impossible to say for sure what the intended meaning was. If you have more information about where you heard or saw this phrase, it might help to clarify its meaning.