money pit
US /ˈmʌn.i pɪt/
UK /ˈmʌn.i pɪt/

1.
lubang uang, pemborosan uang
something that costs a lot of money to operate or maintain
:
•
That old car has become a real money pit.
Mobil tua itu telah menjadi lubang uang sungguhan.
•
Buying that huge house was a mistake; it's been a money pit ever since.
Membeli rumah besar itu adalah kesalahan; itu sudah menjadi lubang uang sejak saat itu.