chew (someone) up and spit (them) out

Translations
использовать (кого-то) и выбросить
The corporate world can chew you up and spit you out if you're not careful.
Корпоративный мир может использовать тебя и выбросить, если ты не будешь осторожен.
Definitions
To treat someone harshly or ruthlessly, often by overwhelming or defeating them, and then discarding them without care; typically used to describe situations where a person is put through a difficult or challenging experience and is left feeling used or exhausted.