Source : Webster's Revised Unabridged Dictionary (1913)

Frazzle \Fraz"zle\, v. t. [imp. & p. p. {Frazzled}; p. pr. & vb.
   n. {Frazzling}.] [Cf. G. faseln, and E. fray.]
   To fray; to wear or pull into tatters or tag ends; to tatter;
   -- used literally and figuratively. [Prov. Eng. & U. S.]

         Her hair was of a reddish gray color, and its frazzled
         and tangled condition suggested that the woman had
         recently passed through a period of extreme excitement.
                                                  --J. C.
                                                  Harris.

Frazzle \Fraz"zle\, n.
   The act or result of frazzling; the condition or quality of
   being frazzled; the tag end; a frayed-out end. [Prov. Eng. &
   U. S.]

         My fingers are all scratched to frazzles. --Kipling.

         Gordon had sent word to Lee that he ``had fought his
         corps to a frazzle.''                    --Nicolay &
                                                  Hay (Life of
                                                  Lincoln).

Source : WordNet®

frazzle
     n : a state of extreme exhaustion; "he was worn to a frazzle"
     v 1: wear away by rubbing; "The friction frayed the sleeve" [syn:
           {fray}]
     2: exhaust physically or emotionally; "She was frazzled after
        the visit of her in-laws"