ar·got
noun/ˈɑːɡəʊ/
/ˈɑːrɡət/, /ˈɑːrɡəʊ/
[singular, uncountable] (from French)- words and phrases that are used by a particular group of people and not easily understood by others
行话；暗语；黑话；切口 Word Originmid 19th cent. (originally denoting the jargon or slang of criminals): from French, of unknown origin.