The correct spelling for the phrase "wast same wavelength" is actually "was on the same wavelength." In IPA (International Phonetic Alphabet) transcription, it can be written as /wɑz ɒn ðə seɪm ˈweɪvleŋθ/. This phrase means that two people have a common understanding or are thinking of the same thing. It is important to use correct spelling and grammar in order to communicate effectively and avoid confusion.