The spelling of the word "gat smoking" may seem unusual to those who aren't familiar with IPA phonetic transcription. However, it is simply a representation of how the word sounds when spoken aloud. The "gat" is pronounced with a soft "g" sound and the "smoking" part is pronounced with a long "o" sound, similar to the word "poke". When you hear someone say "gat smoking", it should sound like "gæt sməʊkɪŋ" in IPA phonetic transcription.