not say boo to a goose(redirected from will not say boo to a goose)
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not say boo to a goose
To be particularly shy, diffident, or timid by nature. Primarily heard in UK. My brother is a very sweet, warm-hearted man who wouldn't say boo to a goose. How can you suspect him of committing this crime? The neighbour's daughter is just the cutest little thing, but she won't say boo to a goose.