[Danihan]

In the video it sounds like "ooge". Similar to "rouge" or "stooge" but cropped short.

https://www.youtube.com/watch?v=sUO3Pk0nOCM

[white-flame]

Sounds like "ng" to me. In english, we can say "mmm" or "nnnn" as drawn-out sounds on their own, just do the same with "ng".