holy mackerel

idiom

Definition of holy mackerel

informal
used to say that one is very surprised, pleased, or excited Holy mackerel! You got your hair cut!

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Cite this Entry

“Holy mackerel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/holy%20mackerel. Accessed 23 Jan. 2022.

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