Back in the day when there were filetrading and torrent sites the WWE was really cracking down on people giving out the top star's matches and PPVs. So people devised code names to fake out the WWE so the files would stay up.
Brock's was "Bork Laser"
It really came back when Dailymotion and Youtube started to have WWE matches taken down for copyright infringement and violations. So the guys would have fake names.
I remember Chrissy Ben Wah and Crispen Wah for Chris Benoit, for instance.