Burushashki Language Lessons...Uncle's native ancestor language?

Uncle said, "Look nephew, I found lessons on our native ancestor's language."
Nephew replied, "Buru ...what? Where is this even located?"
Uncle replied, "It comes from Saint Helena Island."
Nephew types on phone, "It says here the British were the first to settle it."
Uncle said, "That can't be right, we most certainly speak Buru Sasparilla Key."
Nephew replied, "No, we're speaking English right now. Our ancestors spoke..."
Uncle said, "I see, our ancestors spoke Bury shashy coy."
Nephew said, "You mean Borosha...how do you pronounce this?"
Uncle said, "It is Boar you shakey."
Nephew typying of phone, "It looks like it is the ancestral language of Pakistan and North India before the Indo-Aryans forced the people to speak their languages."
Uncle said, "So, it is the language of the Chipsy? I know, just know we are Chipsies."
Nephew said, "You mean the derogatory term "Gypsy" for the Romani people? Ugh, I'm just human. That's good enough for me."
Uncle said, "Ja amagramt..."