Hello! It means to chat in a friendly and persuasive manner to gain an advantage in business.

The implication (meaning) is that the person advanced his career by going outside the normal channels, e.g., by becoming very friendly with the people who could give him a promotion. It's a Yiddish word, so it comes with baggage.

It seems a derogatory word (disrespectful,bad meaning), it probably means kissing ass, brown-nosing, sucking up to his boss, etc to get promotions, etc. LOL

In this context, it suggests that the person is getting promotions by being (too?!) friendly with the managers, not because they are doing very good work. They get promotions by going to the pub/golf club/staff canteen with the right people. It does *not* suggest corruption, just that they are very good at making people like them.