手无缚鸡之力

手无缚鸡之力 [shǒu wú fù jī zhī lì]

1. ■ lack the strength to truss up a chicken -- feeble; be physically very weak:

我们两个手无缚鸡之力， 只好吃饭。 We two have not strength enough in our hands to tie a chicken fast. We can only eat.