Someone who isn't exactly normal. Like, they have this weirdness about them and at the same time they're mysterious. Think of it as calling someone who's a goth this. They are very weird and vague (queer) in a way. Basically two words 'weird' or 'weirdo' and 'queer' combined.
weirdo or queer
Someone walks up to you and does this weird thing with their hands like they've just cast a spell onto you. And you say, while they're walking away, "You fucken queirdo!"