wuss out

Definition from Wiktionary, a free dictionary

[edit] English

[edit] Verb

to wuss out (third-person singular simple present wusses out, present participle wussing out, simple past and past participle wussed out)

1. (slang) To fail to do something because of cowardice.

   He said he was going to climb that tree, but he wussed out at the last moment.

[edit] Synonyms

• chicken out