Basically, for this you need to be horde. And you need a healer and a couple of aoe'ers.
There's a quest in storm peaks called Sniffing out the Perpetrators: Sniffing Out the Perpetrator - Quest - World of Warcraft
Start this quest, then mount the tiger next to khaliisi, but immediately dismount. Do this rapidly, 10-20 times.
This will spawn a massive stream of these Stormforged Pursuers:
Stormforged Pursuer - NPC - World of Warcraft
They will spawn, start chasing the stream of cats that you are spawning, then turn around and go for the person who spawned them.
Basically, they're easy as hell to kill, deal almost no damage, and drop 20 silver each, as well as greens and even epics. Just pick them all up and aoe them down, you'll probably need a healer and an aoe'r for this, but depending on your spec you may be able to solo grind them.
The gold per hour you can make using this is totally insane, I hope it's useful to someone.