思し案あん投なげ首くび

noun

at one's wit's end; at a complete loss

Describes a state of deep perplexity where one cannot think of any solution, often with a physical gesture of tilting the head in thought. A yojijukugo used in literary or emphatic contexts.

• 難なん問もんに思し案あん投首なげくびの体ていで立たち尽つくした。

  He stood there at his wit's end over the difficult problem.