lingo

 
Pronunciation: /ˈlɪŋgəʊ/

noun (plural lingos or lingoes)

informal, often humorous
  • a foreign language or local dialect: it doesn’t matter if you can’t speak the lingo
  • the vocabulary or jargon of a particular subject or group of people: computer lingo

Origin:

mid 17th century: probably via Portuguese lingoa from Latin lingua 'tongue'