be like a dog with a bone

be like a dog with a bone

To be fixated on a particular topic. I was late once, and my boss is like a dog with a bone, bringing it up every chance she gets. Don't mention his ex-wife, or he'll be like a dog with a bone, and we'll hear about her all night long. Come on, you're like a dog with a bone. We've all moved on from that problem, so why can't you?

See also: bone, dog, like

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