People will take every chance they get to “hate” on somebody doing something productive, and Malik’s situation is no different. He states that his rhyming is so “dirty”, a slang word for incredible, and to continue on with the metaphor, he says he’ll need an extra lining since he’s so “dirty”.
At the same time, everything is starting to come together for Malik and his dreams will come to fruition sooner than later. Right now however, the struggle is to literally sell his music, but more importantly spread his message.