cotton bow; cotton fluffer
A traditional tool used to fluff and clean cotton fibers by plucking a bowstring. Also known as 綿打ち弓 (わたうちゆみ).
In the old days, people used a cotton bow to make cotton fluffy.
Compound of 綿 (わた, cotton) and 弓 (ゆみ, bow), referring to the bow-shaped tool used in traditional cotton processing.