The correct spelling of the phrase "wast the bottom of" is actually "was at the bottom of". The phonetic transcription for "was" is /wʌz/ and for "at" is /æt/. The word "wast" is an archaic form of "was" that is not commonly used today. Therefore, it is important to pay attention to the spelling when writing this phrase to prevent confusion or miscommunication. Using correct spelling and pronunciation enhances clear communication and understanding.