The correct spelling of the phrase "wast hot trail" is actually "washt hot trail." The spelling "washt" is considered an archaic form of the past participle of the verb "wash." In IPA phonetic transcription, the word is pronounced as /wɒʃt hɒt treɪl/. This particular spelling can be confusing, but it is important to note that it is not considered a common or standard spelling in modern English.