throw good money after bad

throw money away

To spend money foolishly or indiscriminately; to waste money without r…

bang some heads together

Attempt to get results from a previously ineffectual or argumentative …

whistle past the graveyard

To attempt to stay cheerful in a dire situation; to proceed with a tas…

whip the cat

To attempt to get work or money from someone who is too weak or poor t…

throw to the wolves

To sacrifice someone, especially in an attempt to save oneself.

throw up one's hands

To cease an attempt because it is perceived as doomed.