Insulting a coward
Afraid ,cat= acoward
a scaredy ,cat=a coward
You yellow -bellied sapsucker.(informal)
You are a gutless wonder.(slang)
You’re afraid of your own shadow.(informal)
Are you a man or a mouse?(cliché)
Cat got your tongue?(cliché)
=Are you afraid or unable to speak?
Got cold feet?
=Are you too frightened to act?
You really wimped out.(slang)
Wimped out=withdrew in a cowardly fashion
You really chickened out.(slang)
Chickened out=withdrew in a cowardly fashion.
Lose your nerve?
=Did you lose your resolve