Source : Webster's Revised Unabridged Dictionary (1913)

Miscue \Mis*cue"\, n. (Billiards)
   A false stroke with a billiard cue, the cue slipping from the
   ball struck without impelling it as desired.

Source : WordNet®

miscue
     n 1: a faulty shot in billiards; the cue tip slips off the cue
          ball
     2: a minor inadvertent mistake usually observed in speech or
        writing or in small accidents or memory lapses etc. [syn:
        {slip}, {slip-up}, {parapraxis}]