"office jargon" is correct and can be used in written English.
Example: Many people find business emails difficult to understand due to the thick layer of office jargon used in many professional settings.
The peculiar "across the piece" has become common office jargon, though it is rather mystifying.
Maddening though it is, I suppose that we do have inscrutable office jargon to thank for inspiring a long tradition of excellent workplace satires.
As Balls's use shows, "across the piece" is one example of office jargon that has gone viral in the world of politics too.
Twenty Twelve, which is written and directed by John Morton (previously responsible for the excellent mock-doc series, People Like Us), is as much about the emptiness of office jargon as Olympic delivery.
Highlights include the three friends venomously splitting a restaurant bill and the mind-numbing boardroom meeting filled with office jargon, absurd graphs and women so unbearable they'd give Twenty Twelve's Siobhan Sharpe a migraine.
John Dean's 16 August 1971 memo introduces the list first with your regular office jargon: "This memorandum addresses the matter of how we can maximize the fact of our incumbency in dealing with persons known to be active in their opposition to our Administration".
Jargon is insider knowledge – indeed, picking up the office lingo is a key task when people start a new job.
Jack rises from the desk in his glass-windowed office, spouting business jargon before stripping off his shirt and inviting Tess to lunch.
The only reason I can see is if I'm hitting a Kuwaiti tower--but even then it would be going through a CO [central office, which is jargon for the switching station that connects caller with recipient] in Kuwait and coming back to Iraq," he said.
Gary Coull, long the force behind booming Asian brokerage CLSA, sprinkled his office banter with the jargon of a craft he loved: journalism.
In fact, seven in 10 U.S. workers admitting to using jargon at the office, according to a survey of 2,000 American workers conducted by OnePoll, in conjunction with Jive Communications, which is owned by LogMeIn.
