Stories We Like: Novels For Language Lovers
exclamation of astonishment, etc., early 15c., a whistling sound, of imitative origin.
An exclamation of astonishment, relief, incredulity, etc: It faces ABC's not-nearly-so-formidable Ellen. Whew/ ''Woooeee!'' says Dahl in mock terror
[1890+; probably echoic fr the whistling exhalation of a relieved person]