What exactly is a Chucklefck? Hell if we know. But you can find out tonight at Chucklefck #26 at the Grog Shop. Although the venerable music club isn’t your typical comedy venue, Chucklefck founder and host Ramon Rivas says it lends the show an underground vibe. “You feel like you’re part of the cool kids’ table,” he tells us. Tonight’s show features Clevelander Ryan Dalton, whose smart, sarcastic humor has scored big at comedy competitions throughout North America — including the World Series of Comedy in Las Vegas, the Boston Comedy Festival, and the Just for Laughs Festival in Montreal. Still, nothing beats performing in his hometown. “Ramon's shows have made it fun to do standup in Cleveland,” says Dalton. “His shows around the city are some of the best in the country.” Other talents on tonight’s bill are Jeremy Sheer, Jimmy Graham, and Rodescu Hopkins. Doors open at 8 p.m., the show starts at 9, and tickets are $10 by phone, online, or at the door.