noun
throwing up one's hands; giving up; being at a loss
Used in the phrase お手上げ (or 手上げ) to express that one is completely stuck or has given up. Often implies helplessness or inability to proceed.
See also: お手上げ
この問題は難しすぎて、もうお手上げだ。
This problem is too difficult; I'm completely stuck.
彼の頑固さにはお手上げだよ。
His stubbornness leaves me at a loss.