eat up (someone's) savings

Translations
истощать (чьи-то) сбережения
The medical bills ate up all their savings.
Медицинские счета истощили все их сбережения.
Definitions
To gradually use or deplete all of someone's saved money, often due to ongoing expenses or unexpected costs.
Words
saving

noun
сбережение
eat

verb
есть
eat up

verb
съесть