holy terror vs rapscallion

holy terror and rapscallion both are nouns.

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

As nouns, rapscallion is a hypernym of holy terror; that is, rapscallion is a word with a broader meaning than holy terror:

Other hypernyms of holy terror include imp, monkey, rascal, scalawag, scallywag, scamp.

holy terror (noun)	rapscallion (noun)
a very troublesome child	one who is playfully mischievous
	a deceitful and unreliable scoundrel