The spelling of the word "flagg" is not common and is a deviation from the usual spelling of "flag". However, it is important to note that the pronunciation remains the same. In IPA phonetic transcription, the word "flagg" would be spelled as /flæɡ/. It is pronounced with a short "a" sound followed by a hard "g". It is possible that someone may have misspelled the word or it might be a regional variation.