nigger in the woodpile 成语
nigger in the woodpile|nigger|woodpile
n. phr.,
slang Something unexpected that changes a situation; a hidden factor or trick.

Racist and offensive, but commonly used in the past.
I knew there had to be a nigger in the woodpile, because the man was being much too generous. When the salesman gave him an extra tire for his bike, the boy suspected a nigger in the woodpile.nigger in the woodpile
An anachronous and awful abhorrent byword that was acclimated to call article suspicious.Learn more: nigger
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