The spelling of the phrase "get someone horn" uses the IPA phonetic transcription to indicate the pronunciation of the word. This phrase uses the /h/ sound at the beginning of "horn", followed by the schwa /ə/ sound in "get". The /s/ sound in "someone" is followed by the /h/ sound in "horn". The IPA transcription helps to accurately represent the sounds of the phrase "get someone horn" and aids in understanding its pronunciation.