noun
A pestle, especially a wooden one used with a suribachi (mortar). The term is less common than すりこ木 (surikogi), which is the usual word for a Japanese pestle.
See also: すりこ木
すり鉢と当たり棒でごまをする。
Grind sesame seeds with a mortar and pestle.
すりこ木 is the standard word for a Japanese pestle. 当たり棒 is a less common synonym, sometimes used regionally or in specific contexts.
Compound of 当たり (atari, 'hitting') + 棒 (bō, 'stick'). The exact derivation is uncertain; it may refer to the stick used for pounding or grinding.