To create a rattling sound by shaking or striking.

“Rattle the can of cat treats if you need to find Fluffy.”

To scare, startle, unsettle, or unnerve.

To make a rattling noise; to make noise by or from shaking.

“I wish the dashboard in my car would quit rattling.”

Rattle (a sound made by loose objects shaking or vibrating against one another)

Lively, quick (speech, pace).

(intensifier) good, fine.

“a rattling good lunch”