Ironside Warwolf

It has an armored spike on its tail. Scratch its belly at your own risk.

Riding Requirements:

This mount is available to all eligible characters on your account.
Level 10
Apprentice Riding
Horde only

Source:

Kil'rip in Trading Post - Frostwall (Horde Garrison). Requires Exalted with Laughing Skull Orcs.

Notes:

To unlock the vendor for this mount you must construct a level 2 trading post at your garrison. This will allow you to gain reputation with the Laughing Skull Orcs and you must become Exalted to purchase the mount.
You will also automatically learn this mount if you purchase the Alliance equivalent, the Armored Irontusk, or vice versa.