I was reading the book runny babbit by Shel Silverstine in 7th grade. Everyone in the class started flipping each other's first letter of their first name and the first letter of their last name. So you herd results like instead of Jacob Vaz you herd Vacob Jaz. For me however it turned from Joey Thomas to Toey Jhomas to which I liked Jhomas but hated Toey so I shortened it to just Jh0mas.