The Dirty Hippie Fly is a fly fishing pattern known for its unconventional and creative design. It often incorporates a mix of materials, colors, and textures, reflecting its "dirty" and eclectic appearance. The specific details can vary, but it might include a combination of dubbing, hackle, and flashy materials to mimic various insects or attract fish with its unique flair. As with many artistic fly patterns, the Dirty Hippie Fly can be effective in enticing fish in different conditions.