unaccounted-for expenditures; money with unclear use
Used in accounting, auditing, and political contexts for funds whose purpose or destination cannot be verified.
A large amount of unaccounted-for expenditures was found in the audit.
The politician's unaccounted-for funds have become an issue.
使途不明金 refers to money whose use cannot be accounted for, a common term in scandals much like 裏金 but without the explicit implication of bribery.
Compound of 使途 (purpose of use), 不明 (unknown, unclear), and 金 (money).