Chicken out
/ˈtʃɪkɪn aʊt/informalUK · US
What does “Chicken out” mean?
Chicken out means to back out because you are afraid
You might reach the front of the queue for a roller coaster and chicken out. The plan changes because you are frightened, not because the ride is closed.
Do not use it to pressure someone into a risky activity. Deciding something is unsafe is not the same as being cowardly.
When do people say it?
Use it when fear stops someone doing something they intended to do. It can be a joke about yourself or an unkind judgement about someone else.
“I reached the roller coaster, looked up and chickened out.”
Is it formal or informal?
Register: informal. It is most at home in everyday conversation rather than formal writing. Most common in UK and US.
Where does it come from?
“Chicken” is an informal word for a coward. Adding “out” gives the idea of withdrawing because you have lost your nerve.
Origin confidence: Disputed; treat with caution
How do you say “Chicken out” in other languages?
Related idioms
- Get cold feet, To become nervous and back out.
Last updated 2026-10-01