"BitchLink" can refer to multiple things.
1. A link that leads you to some error page shit saying that you've encountered some kind of FuckUp on your network when really, there isn't. Basically, a link that's being a bitch to you.
2. The error page that a BitchLink(1) may lead you to. It is a redirection to an error page if something goes wrong, or some NetShit causes you problems.
"FUCK! I COULDN'T GET ON MY MYSPACE CAUSE THAT BITCH LINK IT KEEPS SENDING ME TO..."
"Did you disable then enable your connection?"
"Um...DUH! That's why it's called a BitchLink you fuck-head! It's being an unfair snotty little brat who always tries to get guys to-"
"Yeah, yeah, yeah. Let's skip the nasty stuff here. Maybe you should check in a few days."
"This bitch ain't gonna be easy."