naked contract
noun [ C ]
ukus LAW (also nude contract); (or formal nudum pactum)
an informal agreement that is not considered legal in a court of law:
A naked contract is not enforceable.
STOCK MARKET
an agreement for options (= the right to buy shares, etc. in the future at a fixed price) for which the seller does not have the related shares:
There are risks associated with writing naked contracts that one is unable to deliver.