Shoptalk (noun)

1. Conversation among people who work in the same trade, industry or profession, typically about work-related matters.
2. The specialized vocabulary and jargon of a particular trade, industry or profession.

Origin:

Informal term that originated in the late 19th century in reference to the talk and discussion among workers in a shop or factory.

Examples:

1. The shoptalk at the construction site centered around the progress of the building.
2. I couldn't understand most of the shoptalk during the meeting because it was all technical jargon.
3. The shoptalk among the carpenters was all about new tools and techniques.
4. He was so used to the shoptalk at the factory, he couldn't talk to his family anymore.
5. I was trying to listen in on the shoptalk, but it was all in Spanish and I couldn't understand.