Draenor Giants..

I always wanted to see a Draenor giant (lore only monster)
Anyone seen any artwork / real descriptions of the giant?
I'm so curious!
http://www.wowwiki.com/
Is were i read about them.

All we know about the Groms are that they were killed by the orcs and then had their skulls used in the construction of the Temple of the Damned

Yeah, and there's no picture of them anywhere excepting the Temples of the Damned like this one:

Now get your own conclusions. I believe they might look like more human-like orcs

possibly a something that resembles a large humanoid? looks more slender than a ogre though...