In British English, a closet, apart from its more usual meaning of a cupboard or a toilet, etc. Is used to refer to someone who is a bit of a fool or an idiot.
'He's a right closet.'
'I'm a bit of a closet, aren't I?'
Closet Weeb - A weeb/weebs madly obsessed with anime and they don't admit to other people that they are in-fact weebs.
Brandon was enjoying another episode of Bible Black with his dany body pillow . His friend Dumala asked him the next day "Hey Ronald! are you a weeb?" Brandon responded saying "I don't care about anime at all" even though he watches it all the time. Dumala then said "you sure you aren't a closet weeb Little Ronald?" Brandon responded saying "I'm not one of them"
Hey Robert, if I suck your dick, will you suck mine? Ok Dan, but I thought you had a girlfriend? I do Robert, but I'm a silly queer Closet boy, that secretly likes big fat weiners.
someone who always hangs out naked at home or spends time in nudist places, while keeping it a secret from close family and/or friends or everyone they know.
"Why did Mike sprint away when he saw that guy at the nude beach?"
"Cuz he thought he recognized him from the neighborhood, and Mike is a total closet nudist!"