on one's ass

idiom

Definition of on one's ass

chiefly US, informal + impolite
: criticizing someone or telling someone what to do She's always on my ass about getting a better job.

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on one's arm

on one's ass

on one's best behavior

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Cite this Entry

“On one's ass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%20one%27s%20ass. Accessed 30 Sep. 2022.

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