juancarlos said:You are right. I am Cuban and I have never heard that expression among Cubans. I believe Puerto Ricans do use something like un chin chin. Never heard of the word chichi either, meaning a child. The word vaina is only used in eastern Cuba. In fact, I never heard it until I came to the US and met Cubans who came from there. We do use co?o a lot and other words which are common in Spain and the Caribbean. Some words and expressions are common in the three islands, while others are not.
For "un chin" puerto ricans say "un canto" as in "Dame un canto"