> こじ箸 Kojibashi (also known as ほじり箸 hojiribashi)
> To use the chopsticks to pick something out from near the bottom of the dish.
I think there must be some bits that are lost in translation for some of these. This makes it sound like you can't eat all of the food in a bowl with your chopsticks.
Maybe it means that you're digging up food that is under other food?