“Where the funny nigga at?” Raekwon shouted from the stage of B.B. King’s in Manhattan during fellow Wu-Tang member Ghostface Killah’s show last winter. As a favor to his homies from the Shaolin, funnyman Tracy Morgan came to the stage and was asked to “say something funny.” For the impromptu comedy show, the comic reached into his back pocket and pulled out the one thing that he was sure would get a laugh. “What the fuck y’all know about a cock ring? Y’all don’t know shit about the cock ring!” Tracy yelled. …