バタ(あし)

ばたあし
noun
flutter kick (swimming)
sports
1. flutter kick; up-and-down leg kicking
The alternating up-and-down kicking of the legs used in the front crawl and backstroke. バタ mimics the flapping sound; (あし) means legs or feet.
バタ(あし)(はや)
Her flutter kick is fast.
I practiced flutter kicks in the pool.
バタ(あし)だけ25メートル(およ)げるようになった。
I became able to swim 25 meters using only the flutter kick.

Common beginners' drill, often practiced while holding a kickboard (ビート板(ビートばん)).

Common collocations

Similar words