The spelling of the word "sharptasting" can be explained using IPA phonetic transcription. The first syllable "sharp" is pronounced /ʃɑrp/, and the second syllable "tasting" is pronounced /teɪstɪŋ/. The "-ing" suffix is added to the word "taste" to make it a verbal noun, indicating the action of tasting. The word as a whole describes a flavor that is incredibly strong and intense, often causing a sharp or prickly sensation on the tongue.