money pit

US /ˈmʌn.i pɪt/
UK /ˈmʌn.i pɪt/
"money pit" picture
1.

pozo sin fondo, sumidero de dinero

something that costs a lot of money to operate or maintain

:
That old car has become a real money pit.
Ese coche viejo se ha convertido en un verdadero pozo sin fondo.
Buying that huge house was a mistake; it's been a money pit ever since.
Comprar esa casa enorme fue un error; ha sido un pozo sin fondo desde entonces.