プログレッシブ和英中辞典(第３版)の解説
あとあし【後足】
〔動物の〕hind [back] legs
- 熊が後足で立った
The bear stood up on its hind legs. - 砲声を聞いて馬は後足で立った
The horse reared up at the roar of the gun. - 犬が後足で砂を掛けた
The dog kicked up the dirt with its hind legs. - 後足で砂を掛ける
do something malicious to a person when departing [leaving]; take a parting shot at a person