holy terror vs terror

holy terror and terror both are nouns.

Word	Noun	Adjective	Verb	Adverb
holy terror	Yes	No	No	No
terror	Yes	No	No	No

As nouns, holy terror and terror are synonyms defined as:

Other synonyms of holy terror include brat, little terror.

holy terror (noun)	terror (noun)
a very troublesome child	the use of extreme fear in order to coerce people (especially for political reasons)
	an overwhelming feeling of fear and anxiety
	a very troublesome child
	a person who inspires fear or dread