holy mackerel
idiom
informal
—used to say that one is very surprised, pleased, or excited
Holy mackerel! You got your hair cut!
Cite this Entry
“Holy mackerel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/holy%20mackerel. Accessed 4 Dec. 2025.
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