A remix of a track using only a limited sample of the original's lyrics, commonly the repetition of a single word or line "dubbed" over an instrumental track. The term originates from the dub genre of music, which consisted of raggae tracks stripped to their bass and percussion and overlayed with vocal and other samples.
Modern dance remixers commonly make three remixes of a track - a main (or vocal) mix, a dub mix, and an instrumental
"I like the new remix by Ralphi Rosario, but it has too many vocals in it. Do you know if he made a dub mix too?"