boondoggle

US /ˈbuːnˌdɑː.ɡəl/
UK /ˈbuːnˌdɑː.ɡəl/
1.

chuyện vớ vẩn

an unnecessary and expensive piece of work, especially one that is paid for by the public:

:
The senator called the new highways proposal "a fraud and a boondoggle that the taxpayer should not tolerate."