Holy Moly
Holy Moly is an exclamation of surprise that dates from at least 1892. It is most likely a minced oath, a cleaned-up version of a taboo phrase such as "Holy Moses".
It was popularized in the U.S. as an expression often used by Billy Batson, the alter ego of Captain Marvel, a superhero created for Fawcett Publications.
Holy Moly was a celebrity gossip website in the United Kingdom, which closed in 2015.