"AHEHE" is a non-existent word, and therefore, it is impossible to transcribe it phonetically. It is important to note that phonetic transcription is the representation of sounds in language, and if there are no sounds, there can be no transcription. Therefore, there is no possible explanation for the spelling of "AHEHE" using IPA phonetics. It is possible that this word was misspelt or that it is a made-up word with no established phonetic transcription.