lingo

1. N-COUNT People sometimes refer to a foreign language, especially one that they do not speak or understand, as a lingo. (尤指不会说或听不懂的)外语[非正式] [usu sing]

I don't speak the lingo. 我不会说这种外语。

2. N-UNCOUNT A lingo is a range of words or a style of language which is used in a particular situation or by a particular group of people. 行话[非正式] [also 'a' N]

In music-business lingo, that means he wanted to buy the rights to the song and market it. 用唱片界的行话，就是他想买下那首歌曲的版权并推向市场。

...an author who writes in a lurid lingo, freely punctuated with crude expletives. ...文笔间充斥着低俗的暗语和随兴插入粗话的作者。