Quote Originally Posted by Trzeci_Wymiar
Argots, jargons, dialects, they can be used synonymously.
So it's not a HUGE mistake, in fact it's not really a mistake at all.
Well, it is. The topic starter obviously reffered in his question to the term dialect as a regional language (i.e. in its most common scientific meaning). So we discuss here if there are any serious deviations from the 'standard' Russian in pronunciation, grammar, etc.

In this case slang, argot, etc. are obviously not dialects. The same slang words are used troughout the country regardless of the speaker's ethnicity, place of residence and his or her actual accent/dialect (if there's any). They change pretty fast, with a life cycle often less than a decade, and we can safely say that they are NOT dialects (as a stable regional varieties of the same language).

And back to the point - If I talk to my buddies in 'standard' Russian (with standard 'textbook' pronunciation and grammar) using plenty of jargon/slang words does it mean I'm a 'dialect' speaker? NO. If I talk to my boss using a professional slang does it mean our Russian is not standard? NO.

It's a matter of vocabulary and formal/informal speech, not dialects.