Hung up and Have cold feet

Hung up adjective - Having extreme or relentless concern.

Have cold feet and hung up are semantically related In some cases you can use "Have cold feet" instead an adjective phrase "Hung up".

Hung up and have cold feet are semantically related in anxious topic. Sometimes you can use "Hung up" instead an adjective phrase "Have cold feet", if it concerns topics such as very scared.