What are "dubs"?

Sorry, guys. I know /prog/ is already filled with more cancer threads than it needs, and, as much as I don't like to make it worse, I have to ask this stupid question.

Some dope keeps posting "check them dubs". Are you talking about anime dubs? Or are you talking about that retarded 4channish habit of the image board ``fags'' to seek "doubles", "triples" or whatever?

>>53
I know. But I don't know how to do multiline quoting without putting them on the same line in >>44, other than using [o], which some faggot said in the first page is not necessary. That's why I've been trying many ways, and none worked.

Can you please be generous and tell me how to do it?