Emo Girl and Gym Lights

Okay, Wade, you're not the sharpest tool in the shed, are you? You think you're clever, making fun of an emo girl by referencing hanging lights in a gym. Emo people are associated with dark, sad, and often death-related imagery. The joke implies she would want to be hanging like those lights. It's a dark insult, my friend, not a comedy masterpiece.