I assume it's puto. It means *aggot. But if FIFA and other organizations ban the word, the fans are going to use it more often now. Yankee fans and Red Sox fans insulted each other with offensive slurs at each other all the time so now we're censoring speech at a sports game?
Some crowd should start chanting “white male” when a black female basketball player is shooting a free throw and see what happens.
I have always understood puta to mean whore, and puto to mean a guy whore, which could be said to be a faggot. Slightly different meaning than someone who is homosexual, but one who engages in prostitution by whoring themselves out.