Why anyone would want to be called by a name that sounds like someone dry heaving is beyond comprehension.
"Jeh" is in the same linguistic group as "Huh", "Duh", "Uh", and "Nuh"--the group of words most often used by urban teens as answers to questions. Part of this linguistic group includes the silent shoulder shrug, which is not pronounced.
#10. Perhaps his name was a tribute to the Beatles and the last line of the song “She Loves You - Yeah, Yeah, Yeah” but they couldn’t pronounce Yeah properly.