"She always acts so holier-than-thou, as if she's never made a mistake in her life."
"I can't stand her holier-than-thou attitude; she acts like she's better than everyone else."
"He has a holier-than-thou demeanor and constantly looks down on others."
"Don't be so holier-than-thou and judgmental, we all have our flaws."
"The holier-than-thou preacher condemned anyone who didn't adhere to his strict beliefs."
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