Slackness often refers to vulgarity in Jamaican culture, behavior and the music. He is not slack, as we do count slackness. Slackness refers to vulgarity in West Indian culture, behavior and the music. Murray recorded "Slackness", a collaboration with the seminal New York City ska band The Slackers. The slackness style with which Yellowman is associated sometimes has homophobic lyrics. His attempts to eradicate slackness made him appear authoritarian to his clergy. Phipps thought that Jellacic and Linken showed "slackness" by abandoning their operations too easily. This musical style is characterized by texts "slackness" sexually explicit. To satisfy the complementary slackness condition, let . This relation allows us to speak about complementary slackness.