What does fairuza balks triangle tattoo mean?

Answer 1

This is just my opinion, and I could be wrong, but Fairuza is partly Romani and an inverted blue triangle such as she has was a color coded badge that was given to "forced foreign labor" during the Holocaust and it was worn on the clothing of them just as the yellow Star of David was worn by the Jews. It could be that this is a respectful acknowledgement of her ancestors and to those who may have been held in concentration camps during the war. Again, this is simply my opinion.