The answer to 'why is my outlet burning smell' is that a burning smell coming from an electrical outlet is a serious issue that requires immediate attention. This is typically caused by an overheated or damaged outlet, which can be a fire hazard. Common causes include a short circuit, a loose or damaged connection, or an overloaded circuit.
If you notice a burning smell or any signs of damage to an outlet, such as discoloration or sparks, you should stop using it immediately and unplug any devices. Do not attempt to repair the outlet yourself, as this can be dangerous. Instead, you should call a licensed electrician to inspect the outlet and make any necessary repairs.