up to no good

idiom

Definition of up to no good

informal
: doing bad things or planning to do bad things If you ask me, that woman's up to no good.

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Dictionary Entries Near up to no good

up to here

up to no good

up to one's eyes

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Cite this Entry

“Up to no good.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/up%20to%20no%20good. Accessed 2 Aug. 2021.

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