holy mackerel
interjection Slang.
(used as an exclamation to express surprise or wonder.)
Origin of holy mackerel
First recorded in 1795–1805
Words nearby holy mackerel
holy innocents' day,
holy island,
holy joe,
holy lamb,
holy land,
holy mackerel,
holy mary,
holy moly,
holy moses,
holy mother,
holy mysteries