cough up &I{【俚语】}

To hand over or relinquish (money or another possession), often reluctantly.

勉强交出：掏出或放弃（金钱或其他财产），通常是不情愿地

To confess or disclose

承认或供出

When he saw that the police might arrest him, he coughed up the details of what he had seen.

当他意识到警察也许会逮捕他，才全盘托出他看到的一切

cough something up

(或 cough up)give something reluctantly, especially money or information that is due or required

勉强拿出；勉强给出（尤指到期的钱或需要的信息）