Aggy Jaggers
Old slang originally from the county of Kent in England. It refers to an eerie sea mist that forms along the shore which then gradually moves inland bringing with it a chilly, unpleasant clamminess. In his book ‘Great Expectations’ Charles Dickens has Pip meet the convict Magwitch in a thick aggy jagger.
There’s an aggy jaggers come in, can’t see your hand in front of your face.