Combination of "Terrible" and "Bad".
Adopted by and, thoroughly beaten to death, by the shittier World of Warcraft playing community for
people that they
don't like. Because every society of caustic for the sake of cool, self loathing nerds needs to have their own memes and slang to fit in, WoW has this weak shit.
People who realize that "thinking" isn't their particular strength and figure that, being witless,
meme sheepish tools, an Armory check and some lame ass slang should be a good enough replacement for tact, knowledge, facts or well thought out arguments.