expression, noun
one's last hope; one's only hope; the last hope
A set phrase meaning the final thing or person one can rely on in a desperate situation. Often used with 頼る, すがる, or similar verbs.
彼は望みの綱として最後の貯金に頼った。
He relied on his last savings as his only hope.
その医者が彼女の望みの綱だった。
That doctor was her last hope.