Angielsko-polski słownik potocznego języka businessu Copyright by Wydawnictwo HaraldG (aut. Bożena Hoszowska)
(n) unsuspected and injuri-ous conditions or requirements (esp. when part of a contract or an insurance policy) - nieoczekiwane i niekorzystne warunki umowy / kontraktu itp.
The boss has got the drop on him with that small print in the contract.