talk shop

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb intransitive To discuss one's work, business or profession.
• noun A place where people gather to have conversation or discussion which is usually of an informal nature.
• noun pejorative An organization or other group that is all talk and no action.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb discuss matters that are related to work