noun
Refers to preparatory practice or a light exercise to get one's hand in, often before a main task or performance. Commonly used in contexts like music, sports, or crafts.
本番の前に少し手慣らしをしよう。
Let's do a little warm-up practice before the real thing.
ピアノの手慣らしに簡単な曲を弾いた。
I played a simple piece as a piano warm-up.
Compound of 手 (hand) and 慣らし (noun form of 慣らす, 'to accustom'). Literally 'hand-accustoming', referring to getting one's hands used to a task.