don't know

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Don't know (DK, DKed)

"Don't know the trade." A Street expression used whenever one party lacks knowledge of a trade or receives conflicting instructions from the other party. Also, an unscrupulous claim made by one party denying that the trade had been agreed to and made after the trade goes adversely against that party.

Don't Know

Describing a trade that cannot be settled by a clearing house because the counterparties have contradictory or otherwise inconsistent information on the trade. The clearing house may become aware of the discrepancy by reviewing the comps the brokers gave one another, or by some other method. In this trade, it is said that one or both of the counterparties "does not know the trade."

don't know (DK)

A broker-dealer response to a transaction report when the facts of the trade are in doubt or are unknown.
References in periodicals archive ?
Although I am able to cite a parallel to the idea from the Testament of Asher 6:2, "They both practice evil and approve of others who practice it," I do not know to whom Paul is referring.
I do not know who in poor countries could best use your contribution -- but I do know well-regarded doctors, activists, and others who work or volunteer there, whose judgment and recommendations I trust.
We do not know what is going to happen three hundred years down the road.
But what the heck, let's give them another pay raise for telling us what we already know how to do and for them doing what they do not know how to do.
The clergy do not know the power--the huge, magic medicine, the voice of God--that is brought when they walk into the room where a death has occurred and stand upright.
You are now free to leave the hypothesis to others: but admit that even if Christ were only the subject of a great story, the fact that this story could have been imagined and desired by humans, creatures who know only that they do not know, would be just as miraculous (miraculously mysterious) as the son of a real God's being made flesh.
But deep down inside, in that place where I still fear to go, the little voice kept asking me questions: "What if others on the faculty knew that I really do not know what I am doing?
Most organizations even at this stage in the development of this economy do not know the people up and down the organization who are absolutely critical.
Jesus said: "Watch, therefore, for you do not know at what hour your Lord is to come" (Mt 24:42).
Since end users and upper management either genuinely do not know or at least refuse to acknowledge how inadequately information processes serve them, it is incumbent that the people who presumably do know, the professional librarians, make the point not of how wonderful libraries are but rather of how inadequate they are and how good they could be.
In the general area of professional activity, we do not know if integrity can be adequately measured.
However, there are some contractors in the industry who often wind up in this situation because they: (a) took on too much work and are not able to give your project the time and attention it deserves; (b) do not have adequate financing to pay men to continue the job because they misspent the money; (c) do not know how to manage a job; (d) used subcontractors to do the work and owe them money because they underbid the job; or (e) intentionally tried to take advantage of the client.