It’s like you’re counting walnuts for me.Local Oral Tradition
This is the local equivalent of “It’s all Greek to me.” Local walnut sellers count walnuts by the handful. They know exactly how many walnuts are in each handful and are extremely fast at their arithmetic as their hands transfer walnuts lightning-quick out of their large sack and into the customer’s bag. For the uninitiated (like me) it’s very hard to follow. But apparently I’m not the only one. This speedy method of the walnut sellers has become a local idiom for any time information has simply been over your head, too complex to grasp.
“I’m sorry, I didn’t get any of that. It’s like your counting walnuts for me.”