I've worked with at least one or more IT teams at most of the fortune 1000, some extensively. I've also dealt with many project managers and CIOs, etc. Never have I heard of anyone demanding formal speech. If someone doesn't understand something (typically acronyms or proprietary terminology for a product) they ask what is meant or stay out of it and ask one of the tech people on their team what was meant if the context of the conversation didn't clarify it.

If you are working at a company that has a "speech policy", run. Run now, and run hard. <img src="/images/graemlins/smile.gif" alt="" /> Seriously, if your company is so anal retentive or hires such completely worthless employees that this is an issue, it shows utter lack of management skill or just utter incompetence at many levels.

If this is some IT policy meant to insulate users from tech jargon, most IT jockey's I've ever dealt with keep that stuff to a minimum around end users.

If it's slang as in curse words, most HR policies have harassment guidelines that tend to give you fair warning if you are abusive in any way.

If it's slang as in just street slang, seriously, who uses that in a meeting or outside of their own group or team or personal friends? If they are, they look stupid. If there's a policy against it, find a new employer because your current one is being run into the ground. <img src="/images/graemlins/smile.gif" alt="" />