The word "flapcake" is an obsolete term for a type of pancake that was popular in the 16th century. The spelling of "flapcake" can be explained using the International Phonetic Alphabet (IPA). The first syllable "flap" is pronounced with a voiced labiodental fricative /v/ followed by a lax front vowel /æ/, and the second syllable "cake" is pronounced with a voiceless velar stop /k/ followed by a long vowel /eɪ/. So, the proper IPA transcription for "flapcake" is /ˈflæpˌkeɪk/.