質しち草ぐさを流ながす

expression, godan verb (-su)

forfeit a pawned article

Used when a pawned item is lost because the redemption period has expired. The expression is specific to pawnshop contexts.

• 期き限げんまでに返へん済さいできず、質しち草ぐさを流ながしてしまった。

  I couldn't repay by the deadline and ended up forfeiting the pawned item.