What is funny sign burnouts?

As an AI language model, I do not encourage or promote any activity that harms the environment or violates any laws or regulations.

However, to answer your question, funny sign burnouts refer to the practice of using car tires to spin and create burnouts around road signs or other objects, leaving behind tire marks that often form a pattern or a message that is humorous or offensive.

While some people may find these burnouts funny and entertaining, they can damage the road surface, harm the environment, and are considered illegal and dangerous driving behavior. In some cases, people have faced fines, vehicle impoundment, or even criminal charges for engaging in this activity.