What is .. an "Alt" .. a "Bot" .. a double "Main" ?

The one example of "double main" that I know of is a guy I knew who boxed Ranger/Shaman. He always considered his ranger to be his main but he never, ever logged on only one of them. He had both online anytime he was on and in the guild he was in he usually raided on the shaman and would be allowed to bring the ranger on raids once they were on farm. Also he'd get rots for the ranger.

So, double main there as far as he was concerned. He loved that ranger

So, ranger main. shaman box with high playtime. No "double" nothin.

Yeah pretty much, the shaman was always ahead on progression due to doing raids and stuff. Sort of funny really