chicken out

US /ˈtʃɪk.ɪn aʊt/
UK /ˈtʃɪk.ɪn aʊt/
"chicken out" picture
1.

to decide not to do something because you are too frightened

:
•
I was going to try bungee jumping, but I chickened out at the last minute.
•
He was going to ask her out, but he chickened out.
:
back outbalkflinchrecoilretreatwaverwimp outpull outget cold feet
:
chickenchicken wirechicken kievspring chickenchicken feeda chicken and egg situationout-and-out