also: レイムダック
noun
lame duck
A political term for an officeholder whose successor has already been elected, or more broadly someone or something that is ineffective or soon to be replaced. Used in Japanese political and business contexts.
大統領選の後、現職はレームダック化した。
After the presidential election, the incumbent became a lame duck.
そのCEOは退任が決まり、レームダック
The CEO, whose resignation has been decided, is in a lame-duck state.