rattle around
Intermediate (B1) informal
When something bounces around noisily inside something; or when a person is moving around in a house or space that feels very empty.
"I can hear something rattling around inside the engine — we should get it checked."
Hear it in context
Physicist Brian Cox explains quantum physics in 22 minutes
Big Think · 7:56
because they rattle around a bit when they go through.
Sunday Service: On being judged | Sunday Service 2
Russell Brand · 4:16
rattle around between um the Christ that's discovered in scripture,