The spelling of the name "McWhirt" is a bit tricky, but it can be explained using IPA phonetic transcription. The "Mc" at the beginning is pronounced as /mək/ with a very light "uh" sound. The "Wh" is pronounced as /hw/ with a slight exhalation before the "w". The rest of the name, "irt," is pronounced as /ɜrt/ with a silent "w" sound. Altogether, "McWhirt" is pronounced as /mək-hw-irt/. It's important to practice spelling and pronunciation to properly address those with unique or tricky names.