Na'Say'en - A loud and rude way of confirming if someone is still with y

A loud and rude way of confirming if someone is still with you. It’s like a middle finger and a question.

Na'Say'en, I'm not even talking to you anymore.

Na'Say'en, I just got a ticket for talking to my dog.

Na'Say'en, I'm not even mad I'm just confused.