suck someone dry
suck (one) dry
1. To be physically, mentally, or emotionally exhausting. I'm sorry I'm not more responsive when I get home, it's just that work has been sucking me dry lately. I cried so much reading this novel that I felt like it had sucked me dry by the time I finished.
2. To deplete the entirety of one's resources. I don't have any more cash for you to spend at the arcade—you sucked me dry! The expensive and debt-riddled mobile phone company they acquired ended up sucking the business dry over the course of the next five years.
3. vulgar slang To perform fellatio on a man beyond the point of orgasm.