What the $*@!! is a HUB??
Okay, so it'd be a lousy slogan. It sure 'nuff is the question I was asking for real, though, when first encountering HP! 
The HUB pages acronym: Happy Unlimited Banter.
Nah. Let's see....
Hurry Up, Boys!!
Nah, too one-gendered....
HUB-boutit?
Hnh. Think I'll go write a Hub. That's an easier gig than this one...
What's a Hub, again?