greenhorn

noun2

1. •
   An inexperienced person; a novice, beginner, or newcomer.

   • Bije scorned the man who had hired him, this Francis Mason from Philadelphia, but he admitted that the greenhorn had courage and determination. — 1950
2. •
   (offensive) A Portuguese person.

   • She lives in New Bedford, and her dad's not around much and her mum calls her boyfriend a Portagee, a fuckin' greenhorn, — 1993