oaf /ˈof/
  獃子,畸形兒
  Oaf n.
  1. Originally, an elf's child; a changeling left by fairies or goblins; hence, a deformed or foolish child; a simpleton; an idiot.
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  Auf n.  [Also spelt oaf, ouphe.] A changeling or elf child, -- that is, one left by fairies; a deformed or foolish child; a simpleton; an oaf. [Obs.]
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  oaf
       n : an awkward stupid person [syn: lout, clod, stumblebum,
            goon, lubber, lummox, lump, gawk]