pidgin

1. (linguistics) An amalgamation of two disparate languages, used by two populations having no common language as a lingua franca to communicate with each other, lacking formalized grammar and having a small, utilitarian vocabulary and no native speakers.Examples: "‘I didnʼt know you can speak pidgin,’ he said and laughed."Synonyms: baragouincountableuncountable

2. (archaic, idiomatic) A person's business, occupation, work, or trade (also spelt as pigeon).Examples: "Forget money. That's my pidgin."; "It's up to the detective sergeant to ask his own questions, that's not my pidgin. But I did wonder if either of you gentlemen had an idea of the exact time of the shot."archaiccountableidiomaticuncountable