... Harry had never met a vampire, but he had seen pictures of them in his Defence Against the Dark Arts classes, and Black, with his waxy white skin, looked just like one.

'Scary-lookin' fing, inee?' said Stan, who had been watching Harry read.

'He murdered thirteen people?' said Harry, handing the page back to Stan, 'with one curse?'

I'm not sure what the sentence means. I searched on the web: fing could be 'thing', 'effing' and etc, but not quite sure what it is in this context. I can't find a reference for 'inee' anywhere.

-- From Harry Potter and the Prisoner of Azkaban