hi.. not sure whether you're specifically asking about internet meme culture (which I imagine would break the "20-year rule") or the underlying reference, but you may be interested in these posts on ethnicity in Argentina
I've never even heard of any South American native peoples (besides the Inca). What was going on in Brazil/Argentina/Venezuela before European contact?
Why was Patagonia unoccupied until the late 19th Century?
Why is Argentina so "white"?
Why do Argentina and Uruguay have such large white populations (97% and 88% respectively) whereas other South American nations have relatively low white populations (the next highest is Brazil with approximately 48%)?
What happened to the black population of Argentina?