noun (n)

• a heavy rain(noun.phenomenon)

  Synonym:
  cloudburst, deluge, downpour, soaker, torrent, waterspout
  

  source: wordnet30
• a thrower of missiles(noun.person)

  Example:
  The police were too busy to chase the pelters.
  

  source: wordnet30
• One who pelts.(noun)

  source: webster1913
• A pinchpenny; a mean, sordid person; a miser; a skinflint.(noun)

  source: webster1913