名詞 jackass:

1. a man who is a stupid incompetent fool
   同義詞：fathead, goof, goofball, bozo, goose, cuckoo, twat, zany
2. male donkey
   同義詞：jack

1. The mule is half horse and half jackass, and then comes to a full stop, nature discovers her mistake.
   騾子是半馬半驢而就此完全停住了，因為大自然發(fā)現(xiàn)自己搞錯了。

jack.ass

n.（名詞）
A male ass or donkey.
公驢，雄驢
A foolish or stupid person; a blockhead:
傻瓜、笨蛋；呆子：
例句：
.You`ve acted like an irrational jackass and it`s time you stopped.(Margaret Truman)
.你的所作所為就象一個喪失理智的傻瓜，現(xiàn)在你該停止了.(瑪格麗特·杜魯門)