Chopsticker

The latter subjects experienced great difficulty, just as I had, and when asked by the experimenters what they thought they were doing, the chopstickers tended to give answers like "putting food in my mouth" or "moving my hands".

Source: wiktionary

Spencer rushed over to Liv as she started up the steps to the school. "If it isn't the champion chopsticker." He grabbed her hand and laced his fingers with hers. She grinned, her skin tingling from the contact. "That's right. I'm the best chopsticker around. Scratch that sport off the list."

Source: wiktionary