weak at/in the knees

phrase

: so nervous or powerfully affected that it is difficult to stand

The announcement made me weak at the knees.

She said hello to me and I went weak in the knees.

Examples of weak at/in the knees in a Sentence

Recent Examples on the Web

When seeking the queen's approval for their match, the Duke of Hastings delivered a heart-fluttering speech that had everyone weak in the knees. — Saman Shafiq, USA Today, 4 Mar. 2026

What made my mother weak in the knees was a new Lady Kenmore dishwasher. — Sherry Kuehl, Kansas City Star, 5 Feb. 2025

And was there anyone who didn't go weak at the knees for Saint Laurent? — Alicia Lansom, refinery29.com, 23 Oct. 2024

Centrists have been denigrated as squishy, weak in the knees, guilty of being sellouts — and worse, unpatriotic. — Michael S. Johnson, Chicago Tribune, 6 Oct. 2024

Though Sturbridge contains pieces that will make a fashion-nostalgic weak in the knees (Mary McFadden! — Lilah Ramzi, Vogue, 4 Oct. 2024