swear on one's mother's grave

idiom

used to stress that one is being absolutely honest
I didn't do anything wrong. I swear (on my mother's grave).

Dictionary Entries Near swear on one's mother's grave

swear in

swear on one's mother's grave

swear on the Bible

Cite this Entry

“Swear on one's mother's grave.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/swear%20on%20one%27s%20mother%27s%20grave. Accessed 5 Feb. 2023.

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