This is the 17418th most frequent Russian word.
терки
"Тёрки" (informal) - disagreements, conflicts, or tension.
Here, 'терки' refers to kitchen utensils used for grating foods.
На кухне мне понадобились терки для сырого картофеля.
I needed graters for raw potatoes in the kitchen.
In this context, 'терки' informally refers to conflicts or disagreements between people.
У них возникли терки из-за денег, которые нужно было вернуть.
They had disagreements over the money that needed to be returned.
Here, 'терки' are memories of energetic or lively exchanges of ideas or thoughts.