holier than the pope
ho
ˈhəʊ
hew
lier
liə
liē
than
ðæn
dhān
the
ðə
dhē
pope
pəʊp
pewp
more Catholic than the Pope

Definition & Meaning of "holier than the Pope"in English

holier than the pope
01

so extreme and strict in one's adherence to a set of rules, norms, behaviors, etc. that it exceeds what is considered usual 

holier than the Pope definition and meaning
Idiom

What is the origin of the idiom "holier than the Pope" and when to use it?

The origin of the idiom "holier than the Pope" is not well-documented, but it likely evolved from the concept of religious piety and the comparison of one's perceived moral superiority to that of the Pope, who is considered the highest authority in the Roman Catholic Church. It is used to describe someone who acts or presents themselves as morally superior, excessively pious, or self-righteous, often to the point of being hypocritical or judgmental of others.

Examples
He is holier than the Pope about office rules. 
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