What expression is it? [closed]

While watching another part of BGT, after a team performance a judge said something like: "I'm almost at lost of the words". I've tried to listen many times, but still can't understand clearly.

I believe something is wrong, as I can't find any similar phrases. The main idea should be: "It was so good that I can't speak now".

Would you help me to identify the original phrase?


The expression is "(to be) at a loss for words". https://www.merriam-webster.com/dictionary/at%20a%20loss%20for%20words#:~:text=chiefly%20US,at%20a%20loss%20for%20words.