When Dusty Slay won the Charleston Stand-Up Competition for the second time in a row last year, it just confirmed what most of us already knew. This guy’s ready for the big time. Slay’s perfected his deadpan, drawling delivery, and his jokes seem to land with nearly every demographic — tourist, local, young, old, dog-lover, dog-hater. He hosts a monthly stand up showcase at Theatre 99 and a weekly, free open mic comedy night at Big Gun Burger Shop, so you’ve got plenty of chances to see him crack up a crowd.