lingo
/ˈlɪŋgəʊ/noun
(pl. -os 或 -oes)
1- informal, often humorous or derogatory 〈非正式, 常幽默或贬〉a foreign language or local dialect洋文, 方言, 土话：
they were unable to speak a word of the local lingo.
当地土话他们连一句都不会讲。
1.1
- the vocabulary or jargon of a particular subject or group of people行话的词汇; 行话; 切口的词汇; 切口。
词源
mid 17th cent.: probably via Portuguese lingoa from Latin lingua 'tongue'.