wimp out
US /wɪmp/
UK /wɪmp/
句動詞
尻込みする, 怖気づく
to decide not to do something because you are afraid or lack confidence
例:
•
He was going to ask her out, but he wimped out at the last minute.
彼は彼女を誘うつもりだったが、土壇場で尻込みした。
•
Don't wimp out now, we're almost at the top!
今尻込みするな、もうすぐ頂上だ！