One who comes off to most as kind but is actually an asshole.
Hence the name "Closet Asshole": meaning and asshole in the closet.
Closet Assholes are normally really nice to those they don't know but do subtle mean things that aren't super mean but are slightly irritating.
Pretty much antagonists or rebels.
ex 1: someone that leaves you to fend for yourself when the weird chick you find gross asks you out.
"My besfriend is such a Closet Asshole!"
ex 2: someone that when you say not to touch your stuff they poke it.
when a person is nice to you to get what they want and then once they get it or find out they cant have it they are a closet asshole
man that guy was nice but since you didnt give it up to him and hes acting like a closet asshole.