Xenoboric acid/Legends

Acid placed in the head of Jabba the Hutt 's ship captain, Scuppa. If he were to betray the Hutt at any time, the Hutt would press a switch witch would let loose the acid through his brain cells. Scuppa would die instently. When Pricess Nampi chomped down Scuppa as a wedding gift, Jabba pressed the switch, and the acdid killed the Princess too.

Source

 * ''Jabba the Hutt: The Hunger of Princess Nampi