autocremarse

To set oneself on fire, to self-immolate — a serious, weighty verb reserved for real acts of self-immolation, often as extreme political or religious protest. autoinmolarse is the more common and standard term for the same act.

• El monje se autocremó en público como acto de protesta. — The monk set himself on fire in public as an act of protest.
• Varios activistas se han autocremado a lo largo de la historia para llamar la atención sobre una causa. — Several activists have self-immolated throughout history to draw attention to a cause.
• El artículo describe el caso de un hombre que se autocremó frente al parlamento. — The article describes the case of a man who self-immolated in front of parliament.

Using autocremarse loosely or hyperbolically ("I could just die of embarrassment") — it names a real, extreme act and should be reserved for genuine cases, not casual exaggeration.

Often confused with autoinmolarse.