Jargon is the talk of the trade in a profession. This is a moving, transient form of language, usually relating to current issues and typically abbreviated. The usage is similar to slang, and despite the dislike of conventional literati, the usage is effective within its social range. Jargon is unlike slang in that it's the common language of a limited number of people. It may be incomprehensible to those outside the profession.
Examples of Jargon:
Media: 'The treatment needs work.' The sales spiel for a product needs to be developed into something that will actually sell.|
Software: 'Patch the patch.' Fix the thing that's supposed to be fixing the problem.