'And you thought there would be nothing left of us but an opinion, like the Kilkenny cat's tail.
“而且你认为我们除了意见之外什么都没有, 就像基尔肯尼猫的尾巴一样。
英语百科
Kilkenny cat
The term Kilkenny cat refers to anyone who is a tenacious fighter. The origin of the term is now lost so there are many stories purporting to give the true meaning.
To "fight like a Kilkenny cat" refers to an old story about two cats who fought to the death and ate each other up such that only their tails were left. There is also a limerick (with optional added couplet) about the two cats: