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.
1: Hunter's such a dick, I'm
tired of him breaking shit everytime we get in an argument.
2: What? Damn, he seems like an
angel. I can't believe he'd do that...
3:
yeah, he's such a picket fence asshole.