Cover your tracks

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Literal Origin

Originally referred to hiding footprints; now means hiding any evidence.

After the party, they covered their tracks by cleaning up before the parents arrived.

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Metaphorical Use

Often used metaphorically for hiding digital or indirect evidence.

She covered her tracks by deleting her emails and internet history.

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Negative Connotation

Usually implies wrongdoing or guilt; not often used for innocent situations.

To avoid suspicion, the corrupt official covered his tracks with fake documents.