Hold down

1. To physically restrain someone or something against a surface, typically a horizontal one, such as the ground. In this usage, a noun or pronoun can be used between "hold" and "down."As a kid, I hated getting shots so much that a nurse usually had to hold me down. Hold down those papers so they don't blow away.

2. To maintain something, often a job. He's never been able to hold down a job, so he'll probably be fired within a week.

3. To limit something. Can you please get the kids to hold down the screaming while I'm on the phone?

4. To be able to digest food without vomiting. In this usage, a noun or pronoun can be used between "hold" and "down." I'm surprised that I was able to hold down that disgusting dinner.