what's the "sheep"mean?

sheep
KK: []
DJ: []
n.[M]
1. 羊,绵羊[C]
He keeps a flock of sheep.
他养了一群羊。
2. 羊皮[U]
3. 害羞而忸怩的人;胆小鬼;蠢人;驯服的人[C]
Are you a man or are you a sheep?
你是个男子汉,还是个懦夫?
4. 教区居民[K]

这个问题写的有语病。应该是：What does sheep mean?
或：What do you mean by sheep?
或：What is sheep's meaning?

sheep: 绵羊 （不可数名词）

"sheep"是什么意思?
绵羊