Cannot understand this voice passage


I can't understand the first thing Rukawa Kaede says in this video. My ears
hear どう something but I'm not sure

<https://youtu.be/O11z4aO7kYU>

Thank you very much




He is saying the slang word どあほ (ど阿呆) meaning "total idiot". 阿呆 means idiot
and the ど adds emphasis.

<https://www.weblio.jp/content/%E3%81%A9%E9%98%BF%E5%91%86>

I searched it up and apparently it's some sort of iconic phrase from Slam
Dunk.

