足あしが早はやい

expression, i-adjective

fast on one's feet; quick at walking and running

Describes a person or animal that moves quickly on foot. Often used literally.

• 彼かれは足あしが早はやいから、すぐに追おいつくだろう。

  He's fast on his feet, so he'll catch up quickly.

• あの選せん手しゅは足あしが早はやくて、盗とう塁るいが多おおい。

  That player is quick and has many stolen bases.

expression, i-adjective

spoil quickly; go bad fast

Idiomatic expression for food that has a short shelf life or spoils easily. Often used with 食べ物 or specific items like 魚.

• 夏なつは生なまものが足あしが早はやいから気きをつけて。

  In summer, fresh food spoils quickly, so be careful.

• この魚さかなは足あしが早はやいので、今日きょう中じゅうに食たべたほうがいい。

  This fish goes bad fast, so you'd better eat it today.