A picket fence asshole is someone who acts charming, perfect, and overall like an ideal person in public, but is a total asshole in private.

For example, someone might act like the perfect guy who treats his wife and kids like they're the most precious being on Earth only when there are other people around. But when they get home, or when no one is watching, they verbally attack their wife, or try to intimidate their kid.

This term typically applies to guys but is sometimes used to describe a woman too.

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