blighter

blighter (http://definr.com/blighter)

     n 1: a persistently annoying person [syn: pest, cuss, pesterer,
           gadfly]
     2: a boy or man; "that chap is your host"; "there's a fellow at
        the door"; "he's a likable cuss" [syn: chap, fellow, feller,
         lad, gent, fella, cuss]