It's probably obvious based on the human character's line and the context, but the untranslated line is Marisa exclaiming, "Macha's food/meal!" but stretched out and in ko-yu speak.
*Flail flail*Yuu...?*Toss*Marisa
Would you like to become a pet yukkuri?So the food is more important than the hat...YunyaaaaWed gooooooo
Mishder fwood
[I] said nwooooo