cold feet

(idiom) sudden nervousness about something you have to do

Example Sentences:

The groom got cold feet before the wedding, and his friends had to calm him down.

Mike wanted to give the speech at the conference, but he got cold feet at the last second, and was unable to speak.

Media:

Similar idioms:

1. sweep someone off their feet
2. give someone the cold shoulder
3. dead on one’s feet
4. throw cold water on
5. give it a rest
6. go cold turkey
7. speak one’s mind