What are you talking about? "Gunununui!" is an entirely conventional sound effect!
Yeah, added it to the pool :D
It's not "Did you make a mistake?"!GunununununuinuiWhat is it? Did Shiranui make a mistake?Nui〜NuiーWhat's that, Admiral?Eh? The Admiral made a mistake with the formation, so Shiranui's not at fault?Sorry...Ah......NuiーPlease explain - in full - why the expedition failed!Nnnnnnnnui