I don't know

[ɑ̈ɪ̯(ɾ)oʊ̯̃(ʔ)(t̚)noʊ̯]
intj

Meaning

Used in response to a question or command in which the target person does not know the answer to or how to respond.

Master English with Englixia Academy

Join thousands of students mastering English. Get personalized lessons, expert guidance, and interactive practice.