schnook

/ʃnʊk/
noun
  1. A person who is easily fooled, naive, or gullible; a simpleton.
    • He felt like a schnook for believing her story.
    • Don't be such a schnook — that deal is a scam.
    • The con artist targeted tourists, looking for a schnook to cheat.
  2. A person who is pitiable or unfortunate, often in a mild, affectionate way.
    • That schnook waited an hour for a bus that never came.
    • She called him a lovable schnook for always losing his keys.
    • The poor schnook forgot his umbrella and got soaked in the rain.