chicken out
中級 (B1) informal
You were going to do something brave or scary, but at the last second you got too frightened and decided not to do it.
"He was supposed to jump off the diving board, but he chickened out at the last second."
You were going to do something brave or scary, but at the last second you got too frightened and decided not to do it.
"He was supposed to jump off the diving board, but he chickened out at the last second."