Scott, Adam here. I remember for a while you were calling Triple H "HHHH". What was the 4th H for?
BYOBB. That second B was a typo.
Anyway, I sent an e-mail to explain the joke, but in case anyone else cares and didn't get the obvious multiple layers of the joke, it's a two-parter:
1) The fourth H stands for "HGH", and he needed the fourth H because…
2) He was so gigantically bloated when he returned in 2002 that clearly he was bigger than HHH and had now expanded to HHHH.
So there you go.