like a hen with one chicken意为大惊小怪，唠叨不停，或在琐碎小事上瞎操心。

【例句】
She never lets her son go out on his own; she’s like a hen with one chicken.
她从来不让她儿子单独外出，她总是大惊小怪的。

The old lady thought he was like a hen with one chicken.
老妇人认为他是个大惊小怪的家伙。