0 someone or something that is very unlikely to be successful, especially because of a mistake or bad judgment -- （尤指因过错或判断失误造成的）劣势，不太可能成功的人（或事物）
I am not going to argue that point, because it is a dead duck.
This has not proved a way out at all, so that is also a dead duck.
It is clear that the lame duck theory has become a dead duck one.
Option 9 is a dead duck.
So we must perforce proceed to consider it, even though the debate now, and perhaps later, will resemble nothing more than the morbid anatomy of a dead duck.
As we all know, public interest dies quickly and what concerns us so intimately at this moment will perhaps in a year or two be a "dead duck".
He knows that centralised socialism is a dead duck, but what does he want to put in its place?
In the election he said that the whole issue was a "dead duck".
