pinch hitter

pinch hitter
    n 1: (baseball) a substitute for the regular batter
    

77 Moby Thesaurus words for "pinch hitter":
      advocate, agent, alter ego, alternate, alternative, amicus curiae,
      analogy, attorney, backup, backup man, champion, change,
      changeling, comparison, copy, counterfeit, deputy, double, dummy,
      equal, equivalent, ersatz, exchange, executive officer, exponent,
      fake, figurehead, fill-in, gate, ghost, ghostwriter, imitation,
      lieutenant, locum, locum tenens, makeshift, metaphor, metonymy,
      next best thing, paranymph, personnel, phony, pleader, procurator,
      proxy, relief, replacement, representative, reserves, ringer,
      second in command, second string, secondary, sign, spares,
      stand-in, sub, substituent, substitute, substitution, succedaneum,
      superseder, supplanter, surrogate, symbol, synecdoche,
      third string, token, understudy, utility man, utility player,
      vicar, vicar general, vice, vice-president, vice-regent,
      vicegerent