There are loads, most covered above.

However, not long ago I attended a meeting with my boss and 4 or other executives. All half his age. One of these 'youngsters' started on the business speak, after 2 or three minutes my boss (who's 59 and can be a bit 'Alan Sugar' but polite) held up his hand and said 'sorry what are you saying', again the young man started into the jargon, again KJ interrupted him 'I'm sorry I cant follow' and so it went on ... business speak ... 'pardon' ... business speak ... 'what do you mean' - until my boss just said 'No Stop - just plain English please, no jargon'.......... and there we sat for probably 5 minutes. The other exec was literally speechless, he just couldnt find the 'ordinary' words to put forward his argument.

KJ stood up and left the boardroom, saying 'young man when you can prove to me you have a comprehensive command of the English language, come and find me and we'll continue'.