wimp out

== English == === Etymology === From wimp (“one who is weak and unconfident”). === Verb === wimp out (third-person singular simple present wimps out, present participle wimping out, simple past and past participle wimped out) (intransitive, informal, derogatory) To back out of something because of cowardice. ==== Synonyms ==== (behave like a wimp): chicken out ==== Related terms ==== wimpy