what are we waiting for?

/wˌɒt ɑː wiː wˈeɪtɪŋ fɔː/

/wˌʌt ɑːɹ wiː wˈeɪɾɪŋ fɔːɹ/

used to say that the matter that was being talked about should be done without hesitation because there is no reason to delay it any longer