Zebig is a level 60 master engineering trainer and vendor located at Thrallmar in the contested territory of Hellfire Peninsula.
See List of Hellfire Peninsula NPCs.
Trivia[]
His name, together with Lua error in package.lua at line 80: module 'Module:Factiongfx/faction_tip_link.json' not found. 
Lebowski is a play on a well known movie 'The Big Lebowski'